KR19990031148U - Noise reduction device for hydraulic oil in power steering - Google Patents

Noise reduction device for hydraulic oil in power steering Download PDF

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Publication number
KR19990031148U
KR19990031148U KR2019970043857U KR19970043857U KR19990031148U KR 19990031148 U KR19990031148 U KR 19990031148U KR 2019970043857 U KR2019970043857 U KR 2019970043857U KR 19970043857 U KR19970043857 U KR 19970043857U KR 19990031148 U KR19990031148 U KR 19990031148U
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KR
South Korea
Prior art keywords
oil
pressure hose
pressure
tube
spiral cable
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KR2019970043857U
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Korean (ko)
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KR200206515Y1 (en
Inventor
신영귀
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정몽규
현대자동차 주식회사
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Priority to KR2019970043857U priority Critical patent/KR200206515Y1/en
Publication of KR19990031148U publication Critical patent/KR19990031148U/en
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Publication of KR200206515Y1 publication Critical patent/KR200206515Y1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062Details, component parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00Other features of vehicle sub-units
    • B60Y2306/09Reducing noise

Abstract

본 고안은 동력조향장치의 작동유 노이즈 저감장치에 관한 것으로, 오일펌프에서 토출되어 나선형 케이블을 통해 유동하는 압유를 분류하여 압유의 맥동 노이즈를 효과적으로 줄여줄 수 있도록 하는 데에 그 목적이 있다.The present invention relates to a hydraulic oil noise reduction device of a power steering apparatus, and the purpose of the present invention is to classify the pressure oil discharged from the oil pump and flow through the spiral cable to effectively reduce the pulsation noise of the pressure oil.

상기한 바의 목적을 달성하기 위해 오일펌프에 연결된 튜브(1)와 조향기어박스에 연결된 튜브(2)는 압력호스(3)를 매개로 서로 연통되게 연결되고, 이 압력호스보다 작은 직경과 길이를 가진 나선형 케이블(4)은 압력호스내에 삽입되어 압력호스와의 사이에 오일체임버(8)를 형성시킴과 더불어 그 외주면에는 나선형 홈(7)이 형성되면서 중앙에는 홀(6)이 한쪽 측면에서 다른쪽 측면까지 관통되게 형성되며, 상기 나선형 케이블의 홀 중앙에는 압유를 분류시키는 심선(9)이 삽입되어 있다.In order to achieve the above object, the tube 1 connected to the oil pump and the tube 2 connected to the steering gear box are connected in communication with each other via a pressure hose 3, and have a diameter and length smaller than this pressure hose. Spiral cable 4 is inserted into the pressure hose to form the oil chamber (8) between the pressure hose and the outer circumferential surface of the spiral groove (7) is formed while the hole (6) in the center It is formed to penetrate to the other side, and the core wire 9 for dividing the hydraulic oil is inserted in the center of the hole of the spiral cable.

Description

동력조향장치의 작동유 노이즈 저감장치Noise reduction device for hydraulic oil in power steering

본 고안은 동력조향장치의 오일펌프에서 토출되는 압유의 맥동 노이즈를 저감시키는 저감장치에 관한 것으로, 특히 내주면과 외주면에 나선형 홈이 형성된 튜브가 압력 호스내에 내장되어, 오일펌프에서 펌핑된 압유의 맥동 노이즈를 효과적으로 저감시킬 수 있도록 된 동력조향장치의 작동유 노이즈 저감장치에 관한 것이다.The present invention relates to a reduction device for reducing the pulsation noise of the pressurized oil discharged from the oil pump of the power steering device, in particular, a tube having a spiral groove formed in the inner circumferential surface and the outer circumferential surface is embedded in the pressure hose, the pulsation of the hydraulic oil pumped from the oil pump The present invention relates to a noise reduction device for operating oil of a power steering device capable of effectively reducing noise.

일반적으로 대형 자동차나 저압 타이어를 사용한 차량에서는 앞바퀴의 접지저항이 크기 때문에 핸들의 조작력이 크게 되고, 또 신속한 조향 조작이 안될 염려가 있기 때문에 가볍고 신속한 조향조작을 하기 위해 동력조향장치를 사용하고 있는 바, 이와 같은 동력조향장치는 동력원이 되는 유압을 발생시키는 오일펌프와 압력조절밸브 및 유량제어밸브를 포함하는 밸브 유닛 등으로 구성된 동력장치와, 오일펌프에서 발생한 유압을 기계적인 힘으로 바꾸어 조향력을 발생시키기 위해 실린더를 사용하는 작동장치 및, 이 작동장치에 이르는 유로를 개폐하고 핸들의 조작에 상응해서 유로를 바꾸어 동력실린더의 작동방향과 작동상태를 제어하는 제어장치 등으로 구성되어 있다.In general, in the case of a large vehicle or a vehicle using low pressure tires, the steering wheel of the steering wheel becomes large because the grounding resistance of the front wheel is large, and there is a fear that quick steering operation may not be possible. Therefore, a power steering device is used for light and quick steering operation. Such a power steering device includes a power device composed of an oil pump for generating hydraulic pressure as a power source, a valve unit including a pressure control valve and a flow control valve, and a hydraulic force generated by converting the hydraulic pressure generated from the oil pump into mechanical force. It consists of an operating device that uses a cylinder to make a cylinder, and a control device that opens and closes the flow path leading to the operation device and controls the operation direction and operating state of the power cylinder by changing the flow path in accordance with the operation of the handle.

상기와 같은 동력조향장치는 오일펌프에서 펌핑되는 오일의 유압을 동력원으로 사용하고 있기 때문에 오일펌프에서 펌핑된 압유를 조향기어박스로 공급해주기 위해 호스와 튜브가 사용되고 있는 바, 상기 오일펌프는 대개가 베인펌프를 사용하고 있으므로 베인펌프에 의해 펌핑되는 압유는 맥동 노이즈를 전달하게 되고, 이러한 맥동 노이즈를 줄여주기 위해 종래에도 오일펌프와 조향기어박스사이의 오일관로에 노이즈 저감장치를 갖춘 압력호스를 사용하고 있었다.Since the power steering device uses the oil pressure of the oil pumped from the oil pump as a power source, the hose and the tube are used to supply the pressure oil pumped from the oil pump to the steering gear box. Since the vane pump is used, the pressure oil pumped by the vane pump transmits pulsation noise, and in order to reduce such pulsation noise, a pressure hose equipped with a noise reduction device in the oil pipeline between the oil pump and the steering gear box is conventionally used. Was doing.

도 1은 상기와 같은 종래의 압력호스를 단면으로 도시한 것인 바, 즉 오일펌프에 연결된 튜브(101)와 조향기어박스에 연결된 튜브(102)가 직경이 상대적으로 큰 압력호스(103)를 매개로 서로 연통되게 연결되고, 상기 압력호스의 내부에는 상기 튜브(101)의 일단이 삽입되어 나선형 케이블(104)의 일단과 서로 연통되게 연결되며, 상기 나선형 케이블(104)은 압력호스보다 작은 직경과 길이를 가지고서 그 타단에 캡(105)이 씌워져 있으며, 상기 나선형 케이블(104)의 중앙부위에는 홀(106)이 한쪽 측면에서 다른쪽 측면까지 길이방향을 따라 연장되게 형성됨과 더불어 이 홀과 연통하는 구멍이 상기 캡에 형성되어 있다.1 is a cross-sectional view of a conventional pressure hose as described above, that is, a tube 101 connected to an oil pump and a tube 102 connected to a steering gear box have a pressure hose 103 having a relatively large diameter. Are connected in communication with each other, one end of the tube 101 is inserted into the pressure hose and is connected in communication with one end of the spiral cable 104, the spiral cable 104 has a smaller diameter than the pressure hose The other end of the helical cable 104 is covered with a cap 105, and the hole 106 is formed to extend along the length direction from one side to the other side in communication with the hole. A hole is formed in the cap.

여기서 상기 나선형 케이블(104)은 그 외주면에 나선형상의 홈(107)이 형성되어 있고, 또 상기 나선형 케이블과 압력호스사이의 공간에는 오일체임버(108)가 형성되어 있다.The spiral cable 104 has a spiral groove 107 formed on its outer circumferential surface, and an oil chamber 108 is formed in the space between the spiral cable and the pressure hose.

이에 따라 오일펌프에서 펌핑된 압유가 상기 튜브(101)를 통해 압력호스(103)의 내부로 유입된 다음에 나선형 케이블(104)의 중앙 홀(106)을 통해 압력호스를 거쳐서 조향기어박스와 연결된 튜브(102)를 매개로 조향기어박스로 공급되게 되는 데, 상기 나선형 케이블의 선단부를 통해 유출된 압유가 나선형 케이블과 압력호스사이에 형성된 오일체임버(108)내의 오일과 합류되어 튜브(102)를 통해 유출되는 과정에 나선형 케이블의 외주면에 형성된 나선홈에 의해 와류가 형성되어, 압유의 맥동 노이즈를 저감시키게 되어 있다.Accordingly, the pressure oil pumped from the oil pump is introduced into the pressure hose 103 through the tube 101 and then connected to the steering gear box via the pressure hose through the central hole 106 of the spiral cable 104. It is supplied to the steering gear box via the tube (102), the pressure oil flowing through the front end of the spiral cable is joined with the oil in the oil chamber 108 formed between the spiral cable and the pressure hose to connect the tube (102) Vortex is formed by the spiral groove formed in the outer circumferential surface of the helical cable in the process of flowing out, thereby reducing the pulsation noise of the pressure oil.

그런데 상기와 같은 종래의 압력호스 노이즈 저감장치에서는 단지 나선형 케이블의 외주면에 형성된 홈에 의해서만 와류를 발생시켜 노이즈를 저감시킴에 따라 노이즈 저감효과가 만족할 만큼 양호하지 못하다고 하는 결점이 있었다.However, in the conventional pressure hose noise reduction device as described above, there is a drawback that the noise reduction effect is not satisfactory as the vortex is generated only by the grooves formed on the outer circumferential surface of the spiral cable to reduce the noise.

이에 본 고안은 상기한 결점을 해소하기 위해 안출된 것으로, 오일펌프에서 토출되어 나선형 케이블을 통해 유동하는 압유를 분류하여 압유의 맥동 노이즈를 효과적으로 줄여줄 수 있도록 된 동력조향장치의 노이즈 저감장치를 제공함에 그 목적이 있다.The present invention has been devised to solve the above-described drawbacks, and provides a noise reduction device of a power steering device which can effectively reduce pulsation noise of a hydraulic oil by classifying the hydraulic oil discharged from an oil pump and flowing through a spiral cable. Has its purpose.

도 1은 종래 기술에 따른 노이즈 저감장치를 갖춘 동력조향장치의 압력 호스의 단면도이고,1 is a cross-sectional view of a pressure hose of a power steering apparatus with a noise reduction device according to the prior art,

도 2는 본 고안에 따른 노이즈 저감장치를 갖춘 동력조향장치의 압력 호스의 단면도이다.2 is a cross-sectional view of the pressure hose of the power steering apparatus with a noise reduction device according to the present invention.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

1-튜브 2-튜브1-tube 2-tube

3-압력호스 4-나선형 케이블3-Pressure Hose 4-Spiral Cable

5-캡 6-홀5-cap 6-hole

7-나선형 홈 8-오일체임버7-Spiral Groove 8-Oil Chamber

9-심선9-core

상기한 바의 목적을 달성하기 위한 본 고안은, 오일펌프에 연결된 튜브와 조향기어박스에 연결된 튜브는 압력호스를 매개로 서로 연통되게 연결되고, 이 압력호스보다 작은 직경과 길이를 가진 나선형 케이블은 압력호스내에 삽입되어 압력호스와의 사이에 오일체임버를 형성시킴과 더불어 그 외주면에는 나선형 홈이 형성되면서 중앙에는 홀이 한쪽 측면에서 다른쪽 측면까지 관통되게 형성되며, 상기 나선형 케이블의 홀 중앙에는 압유를 분류시키는 심선이 삽입되어 있다.The present invention for achieving the above object, the tube connected to the oil pump and the tube connected to the steering gear box is connected in communication with each other via a pressure hose, the spiral cable having a diameter and length smaller than this pressure hose Inserted into the pressure hose to form an oil chamber between the pressure hose and the outer circumferential surface is formed with a spiral groove, the hole in the center is formed so as to penetrate from one side to the other side, the pressure oil in the center of the hole of the spiral cable The core wire which classifies is inserted.

이하 본 고안을 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 고안에 따른 노이즈 저감장치를 갖춘 동력조향장치의 압력 호스의 단면도인 바, 즉 오일펌프에 연결된 튜브(1)와 조향기어박스에 연결된 튜브(2)가 직경이 상대적으로 큰 압력호스(3)를 매개로 서로 연통되게 연결되고, 상기 압력호스의 내부에는 상기 튜브(1)의 일단이 삽입되어 나선형 케이블(4)의 일단과 서로 연통되게 연결되며, 상기 나선형 케이블(4)은 압력호스보다 작은 직경과 길이를 가지고서 그 타단에 캡(5)이 씌워져 있으며, 상기 나선형 케이블(4)의 중앙부위에는 홀(6)이 한쪽 측면에서 다른쪽 측면까지 길이방향을 따라 연장되게 형성됨과 더불어 이 홀과 연통하는 구멍이 상기 캡(5)에 형성되어 있다.2 is a cross-sectional view of a pressure hose of a power steering apparatus with a noise reduction device according to the present invention, that is, a tube 1 connected to an oil pump and a tube 2 connected to a steering gear box having a relatively large diameter. (3) is connected in communication with each other, one end of the tube (1) is inserted into the inside of the pressure hose is connected in communication with one end of the spiral cable (4), the spiral cable (4) The cap 5 is covered at the other end with a diameter and length smaller than that of the hose, and the hole 6 is formed to extend along the length direction from one side to the other side of the spiral cable 4. A hole communicating with the hole is formed in the cap 5.

여기서 상기 나선형 케이블(4)은 그 외주면에 나선형상의 홈(7)이 형성되어 있고, 또 상기 나선형 케이블과 압력호스사이의 공간에는 오일체임버(8)가 형성되어 있다.The spiral cable 4 has a spiral groove 7 formed on its outer circumferential surface, and an oil chamber 8 is formed in the space between the spiral cable and the pressure hose.

또 상기 홀(6)의 직경보다 작은 직경을 가진 심선(9)이 홀의 중앙에서 시작부위부터 끝부위까지 길게 연장되게 삽입되어 적절한 수단으로 지지되어 있다.In addition, a core wire 9 having a diameter smaller than the diameter of the hole 6 is inserted to extend from the beginning to the end at the center of the hole and is supported by appropriate means.

이에 따라 오일펌프에서 펌핑된 압유가 상기 튜브(1)를 통해 압력호스(3)의 내부로 유입된 다음에 나선형 케이블(4)의 중앙 홀(6)을 통해 압력호스를 거쳐서 조향기어박스와 연결된 튜브(2)를 매개로 조향기어박스로 공급되게 되는 데, 상기 나선형 케이블의 선단부를 통해 유출된 압유가 나선형 케이블과 압력호스사이에 형성된 오일체임버(8)내의 오일과 합류되어 튜브(2)를 통해 유출되는 과정에 나선형 케이블의 외주면에 형성된 나선홈에 의해 와류가 형성되어, 압유의 맥동 노이즈를 저감시키게 되어 있다.Accordingly, the pressure oil pumped from the oil pump is introduced into the pressure hose 3 through the tube 1 and then connected to the steering gear box through the pressure hose through the central hole 6 of the spiral cable 4. It is supplied to the steering gear box via the tube (2), the pressure oil flowing out through the front end of the spiral cable is joined with the oil in the oil chamber (8) formed between the spiral cable and the pressure hose to connect the tube (2) Vortex is formed by the spiral groove formed in the outer circumferential surface of the helical cable in the process of flowing out, thereby reducing the pulsation noise of the pressure oil.

또 상기 홀을 통해 유입되는 압유는 상기 심선에 의해 분류되게 되고, 이러한 심선에 의한 분류작용으로 압유의 맥동 노이즈가 한층 더 저감되게 된다.In addition, the pressure oil flowing through the hole is classified by the core wire, and the pulsation noise of the pressure oil is further reduced by the classification action by the core wire.

이상 설명한 바와 같이 본 고안에 따른 동력조향장치의 작동유 노이즈 저감장치에 의하면, 오일펌프에서 펌핑되어 압력호스를 통해 조향기어박스로 공급되는 압유의 노이즈가 압력호스내의 케이블에 형성된 나선형 홈의 와류작용과 케이블속에 삽입된 심선의 분류작용으로 효과적으로 저감되게 되는 잇점이 있다.As described above, according to the hydraulic noise reduction device of the power steering apparatus according to the present invention, the noise of the pressurized oil pumped from the oil pump and supplied to the steering gear box through the pressure hose is combined with the vortex action of the spiral groove formed in the cable in the pressure hose. There is an advantage that can be effectively reduced by the sorting action of the core wire inserted into the cable.

Claims (1)

오일펌프에 연결된 제1튜브와 조향기어박스에 연결된 제2튜브를 서로 연통되게 연결시키는 압력호스와, 이 압력호스보다 작은 직경과 길이를 가지고서 압력호스내에서 상기 제1튜브에 일단이 연결되어 상기 압력호스와의 사이에 오일체임버를 형성시킴과 더불어 외주면에는 나선형 홈이 형성된 나선형 케이블 및, 이 나선형 케이블의 중앙에 압유가 유동될 수 있도록 한쪽 측면에서 다른쪽 측면까지 관통되게 형성된 홀을 갖춘 동력조향장치의 작동유 노이즈 저감장치에 있어서,A pressure hose connecting the first tube connected to the oil pump and the second tube connected to the steering gear box to each other, and having a diameter and length smaller than the pressure hose, one end of which is connected to the first tube in the pressure hose. Power steering with an oil chamber formed between the pressure hose and a spiral cable with a spiral groove formed on the outer circumferential surface thereof, and a hole formed to penetrate from one side to the other side so that the hydraulic oil can flow in the center of the spiral cable. In operating oil noise reduction device of the device, 상기 나선형 케이블의 홀 중앙에는 압유를 분류시키는 심선이 삽입된 것을 특징으로 하는 동력조향장치의 작동유 노이즈 저감장치.Operating oil noise reduction device of the power steering device, characterized in that the core wire is inserted into the center of the hole of the spiral cable for classifying the oil pressure.
KR2019970043857U 1997-12-30 1997-12-30 Noise reduction device for hydraulic oil in power steering KR200206515Y1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030033844A (en) * 2001-10-25 2003-05-01 주식회사 만도 Power steering system of oil pressure feed tube
KR100459486B1 (en) * 2001-10-17 2004-12-03 엘지전선 주식회사 Spiral tuner for reducing flow fluctuation in fluid flow system
KR100471991B1 (en) * 2002-06-01 2005-03-08 기아자동차주식회사 Structure for guiding a oil of an automobile
KR100571557B1 (en) * 2002-08-26 2006-04-17 엘에스전선 주식회사 Ring type spiral cap in high pressure hose for pulsation reduction
KR100842307B1 (en) * 2006-11-15 2008-07-01 주식회사 만도 Tuning Cable for Reducing High Frequency Noise of Power Steering Hose
KR20190060146A (en) * 2017-11-24 2019-06-03 현대자동차주식회사 Pulsation damping structure of clutch for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459486B1 (en) * 2001-10-17 2004-12-03 엘지전선 주식회사 Spiral tuner for reducing flow fluctuation in fluid flow system
KR20030033844A (en) * 2001-10-25 2003-05-01 주식회사 만도 Power steering system of oil pressure feed tube
KR100471991B1 (en) * 2002-06-01 2005-03-08 기아자동차주식회사 Structure for guiding a oil of an automobile
KR100571557B1 (en) * 2002-08-26 2006-04-17 엘에스전선 주식회사 Ring type spiral cap in high pressure hose for pulsation reduction
KR100842307B1 (en) * 2006-11-15 2008-07-01 주식회사 만도 Tuning Cable for Reducing High Frequency Noise of Power Steering Hose
KR20190060146A (en) * 2017-11-24 2019-06-03 현대자동차주식회사 Pulsation damping structure of clutch for vehicle

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