KR20010046595A - Orifice structure for a shock absorber - Google Patents

Orifice structure for a shock absorber Download PDF

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Publication number
KR20010046595A
KR20010046595A KR1019990050423A KR19990050423A KR20010046595A KR 20010046595 A KR20010046595 A KR 20010046595A KR 1019990050423 A KR1019990050423 A KR 1019990050423A KR 19990050423 A KR19990050423 A KR 19990050423A KR 20010046595 A KR20010046595 A KR 20010046595A
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KR
South Korea
Prior art keywords
orifice
strut
hole
shock absorber
pressure
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KR1019990050423A
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Korean (ko)
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KR100330045B1 (en
Inventor
이강우
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류정열
기아자동차 주식회사
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Priority to KR1019990050423A priority Critical patent/KR100330045B1/en
Publication of KR20010046595A publication Critical patent/KR20010046595A/en
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Publication of KR100330045B1 publication Critical patent/KR100330045B1/en

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    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • F16F2226/045—Press-fitting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE: An orifice structure for a shock absorber effectively absorbs the instantaneous pressure of operating oil generated on the strut of the shock absorber. CONSTITUTION: On running on an off road, although vibration or impact is acted on tires, some operating oil(90) located on the lower portion of a strut(10) firstly damps and absorbs the energy of the vibration or impact with being moved to the upper portion of the strut(10) through an operating oil passing hole(41a) of a blocking panel(41). Then, the operating oil(90) has an instantaneously increased pressure by being contacted with the lower surface of the blocking panel(41). Then, the operating oil(90) secondly damps and absorbs the energy of the vibration or impact with being moved to the upper portion of the strut(10) with passing through an orifice mesh(53) of a pressure absorber(50). Therefore, a ride comfort is improved.

Description

쇽업소버용 오리피스구조 {Orifice structure for a shock absorber}Orifice structure for shock absorber {Orifice structure for a shock absorber}

본 발명은 쇽업소버용 오리피스구조에 관한 것으로서, 더욱더 상세하게는 차량을 운행중 쇽업소버의 스트러트에 하부에서 순간적으로 작동유의 압력이 증가하는 경우에도, 상기 쇽업소버의 스트러트에 발생된 순간적인 작동유의 압력이 효과적으로 흡수되도록 하는 쇽업소버용 오리피스구조에 관한 것이다.The present invention relates to an orifice structure for a shock absorber, and more particularly, even when the pressure of the hydraulic oil increases momentarily from the bottom to the strut of the shock absorber while the vehicle is in operation, the instantaneous hydraulic pressure generated in the strut of the shock absorber. The orifice structure for the shock absorber to be effectively absorbed.

일반적으로 차량의 전부와 후부 좌우 양측에는 도 1에 도시하고 있는 바와 같이, 차축과 프레임을 연결하여 차량을 운행중 노면에서 받는 진동이나 충격을 흡수하는 쇽업소버(100)의 스트러트(10) 상부에는 코일스프링(30)이 설치되고, 상기 코일스프링(30)이 설치된 스트러트(10)의 하단부에는 댐퍼(20)가 결합되며, 상기 댐퍼(20)가 결합된 스트러트(10)의 내부에는 오리피스가 설치되어 있다.In general, as shown in FIG. 1, the front and rear left and right sides of the vehicle are connected to the axle and the frame to absorb the vibrations or shocks received from the road surface while the vehicle is in operation. A spring 30 is installed, a damper 20 is coupled to a lower end of the strut 10 on which the coil spring 30 is installed, and an orifice is installed inside the strut 10 to which the damper 20 is coupled. have.

여기에서 종래 쇽업소버용 오리피스구조는 도 2와 도 3에 도시하고 있는 바와 같이, 스트러트(10)의 내경과 중심과 외경이 동일한 크기로 가림판(41)이 형성되고, 상기 가림판(41)의 중앙에는 작동유통과공(41a)이 형성되어 있다.Here, in the conventional shock absorber orifice structure, as shown in FIGS. 2 and 3, the shielding plate 41 is formed in the same size as the inner diameter, the center and the outer diameter of the strut 10, and the shielding plate 41 is formed. At the center of the working flow through hole (41a) is formed.

이러한 종래 쇽업소버용 오리피스구조는 스트러트(10)의 내측면에 가림판(41)의 외측면이 접하며 기밀을 유지하도록 오리피스(40)가 설치되는 것에 의해 차량을 운행중 노면사정 등에 의해 타이어에 진동이나 충격이 가해지면 스트러트(10)의 하부에 위치되어 있던 작동유(90)가 가림판(41)의 작동유통과공(41a)을 통해 스트러트(10)의 상부로 이동되면서 진동을 흡수하고, 상기와 같이 작동유(90)가 스트러트(10)의 상부로 이동되면서 진동을 흡수 한 후에는 가림판(41)의 작동유통과공(41a)을 통해 스트러트(10)의 하부로 이동되면서 작동유(90)가 스트러트(10)의 하부로 원위치 되고 있다.In the conventional shock absorber orifice structure, the outer surface of the shielding plate 41 is in contact with the inner surface of the strut 10, and the orifice 40 is installed to maintain airtightness. When an impact is applied, the hydraulic oil 90 positioned at the lower portion of the strut 10 is moved to the upper portion of the strut 10 through the operating passage hole 41a of the shielding plate 41 to absorb vibrations. As the hydraulic oil 90 is moved to the upper portion of the strut 10 and absorbs the vibration, the hydraulic oil 90 is moved to the lower portion of the strut 10 through the operating passage hole 41a of the shielding plate 41. It is returned to the lower part of the strut 10.

그러나 이러한 종래 쇽업소버용 오리피스구조는 가림판(41)의 중앙에 형성된 작동유통과공(41)을 통해서만 스트러트(10)의 내부에 충진된 작동유(90)가 이동되면서 차량을 운행중 발생하는 진동 이나 충격에너지가 흡수 됨으로서, 요철이 심한도로나 비포장도로를 주행시에는 상기 스트러트(10)의 하부에서 상부로 작동유(90)가 이동하면서 진동이나 충격을 흡수하려는 경우, 상기 작동유(90)의 일부가 가림판(41)의 저면과 접하게되어 순간적으로 작동유(90)의 압력이 증가되고, 상기 스트러트(10)의 하부에서 순간적으로 발생된 압력에너지는 충격에너지로 변화되면서 차체로 전달됨으로서 차실에 탑승한 승원의 승차감을 저감시키게 되는 문제점이 있었다.However, this conventional shock absorber orifice structure is the vibration generated during the operation of the vehicle while moving the hydraulic fluid 90 filled in the interior of the strut 10 only through the operating through-hole 41 formed in the center of the shielding plate (41). As the impact energy is absorbed, when the driving oil 90 moves from the lower part of the strut 10 to the upper part when driving on a rough road or an unpaved road, a part of the operating oil 90 is blocked. In contact with the bottom of the plate 41 is instantaneously increased the pressure of the hydraulic oil 90, the pressure energy generated instantaneously in the lower portion of the strut 10 is transferred to the vehicle body while being converted into impact energy and occupants in the cabin There was a problem of reducing the ride comfort of.

본 발명의 목적은 상기 종래와 같은 문제점을 해결하기 위해, 작동유통과공이 형성된 가림판의 일측부에 보조작동유통과공이 관통되어 형성되고, 상기 보조작동유통과공의 내부에는 제1오리피스링과 제2오리피스링 사이에 오리피스메쉬가 설치된 압력흡수기를 설치하여, 요철이 심한도로나 비포장도로를 주행시 타이어에 진동이나 충격이 가해지는 경우에도 스트러트의 하부에 위치되어 있던 일부의 작동유는 가림판의 작동유통과공을 통해 스트러트의 상부로 이동되면서 1차적으로 진동 및 충격에너지를 감쇄시켜 흡수하고, 상기 가림판의 저면과 접하면서 순간적으로 압력이 증가된 작동유는 압력흡수기의 오리피스메쉬를 통과하면서 스트러트의 상부로 이동되어 2차적으로 진동 및 충격에너지가 감쇄 및 흡수되도록 함으로서, 차실에 탑승한 승원의 승차감이 향상되도록 하는 쇽업소버용 오리피스구조를 제공하는 데 있다.An object of the present invention is to solve the problems as described above, the auxiliary working through hole is formed in one side of the shielding plate formed with the working through hole is formed, the first orifice ring and the inside of the auxiliary working through hole A pressure absorber with an orifice mesh installed between the second orifice ring allows some of the hydraulic oil located at the bottom of the strut to operate when the tire is vibrated or impacted when driving on uneven roads or unpaved roads. While moving to the upper part of the strut through the flow hole, the attenuated vibration and impact energy is primarily absorbed, and the hydraulic oil which is instantaneously increased in pressure while contacting the bottom of the screen is passed through the orifice mesh of the pressure absorber. Moved to the upper side to attenuate and absorb vibration and impact energy secondaryly, The comfort of the orifice to provide a structure for shock absorbers to ensure improved.

도 1은 일반적인 쇽업소버의 결합상태를 보인 분해사시도1 is an exploded perspective view showing a combined state of a typical shock absorber

도 2는 종래 쇽업소버용 오리피스구조를 보인 사시도Figure 2 is a perspective view showing an orifice structure for a conventional shock absorber

도 3은 종래 쇽업소버용 오리피스가 설치된 상태를 보인 단면도Figure 3 is a cross-sectional view showing a state in which a conventional orifice for shock absorber is installed

도 4는 본 발명의 쇽업소버용 오리피스구조를 보인 분해사시도Figure 4 is an exploded perspective view showing the shock absorber orifice structure of the present invention

도 5는 본 발명의 쇽업소버용 오리피스가 설치된 상태를 보인 단면도Figure 5 is a cross-sectional view showing a state in which the shock absorber orifice of the present invention is installed

도 6은 본 발명의 압력흡수기를 보인 사시도Figure 6 is a perspective view of the pressure absorber of the present invention

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 스트러트 40 : 오리피스10: strut 40: orifice

41 : 가림판 41a: 작동유통과공41: blanking plate 41a: working through hole

41b: 보조작동유통과공 45 : 고정홈41b: auxiliary working through hole 45: fixed groove

50 : 압력흡수기 51 : 제1오리피스링50: pressure absorber 51: first orifice ring

52 : 제2오리피스링 53 : 오리피스메쉬52: the second orifice ring 53: orifice mesh

54 : 걸림돌기54: jamming projection

이하, 첨부된 도면에 의하여 본 발명의 그 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention with reference to the accompanying drawings in detail as follows.

본 발명의 쇽업소버용 오리피스구조도 도 4와 도 5에 도시하고 있는 바와 같이, 스트러트(10)의 내경과 중심과 외경이 동일한 크기로 가림판(41)이 형성되고, 상기 가림판(41)에는 작동유통과공(41a)이 형성되어 지는 것은 종래와 같다. 단, 본 발명은 상기 작동유통과공(41a)이 형성된 가림판(41)의 일측부에 보조작동유통과공(41b)이 관통되어 형성되고, 상기 보조작동유통과공(41b)의 내부에는 제1오리피스링(51)과 제2오리피스링(52) 사이에 오리피스메쉬(53)가 설치된 압력흡수기(50)가 설치됨을 그 기술적 구성상의 기본 특징으로 한다.4 and 5, the shielding plate 41 is formed with the same size as the inner diameter, the center and the outer diameter of the strut 10, and the shielding plate 41 is shown in FIGS. The working passage hole 41a is formed as in the prior art. However, the present invention is formed by penetrating the auxiliary operation through hole 41b on one side of the shielding plate 41 formed with the operation through hole (41a), the inside of the auxiliary operating through hole (41b) A technical feature of the technical configuration is that a pressure absorber 50 provided with an orifice mesh 53 is installed between the first orifice ring 51 and the second orifice ring 52.

한편, 상기 압력흡수기(50)는 도 4와 도 6에 도시하고 있는 바와 같이, 오일피스메쉬(53)가 견고히 설치되도록 함은 물론, 작동유통과공(41b)으로 부터 압력흡수기(50)가 분리되지 않도록 하는 걸림돌기(54)가 외측면에 형성되도록 제1오리피스링(51)과 제2오리피스링(52)이 프레스 압착됨을 밝혀 둔다.On the other hand, the pressure absorber 50, as shown in Figures 4 and 6, to ensure that the oil piece mesh 53 is firmly installed, as well as the pressure absorber 50 from the working passage hole (41b) It is noted that the first orifice ring 51 and the second orifice ring 52 are press-pressed so that the engaging protrusion 54 is formed on the outer surface so as not to be separated.

또한 상기 보조작동유통과공(41b)에는 도 5에 도시하고 있는 바와 같이, 압력흡수기(50)의 외측부로 돌출되어 형성된 걸림돌기(54)가 삽입되어 고정되도록 하는 고정홈(45)이 가림판(41)의 내부로 내삽지게 형성됨을 밝혀 둔다.In addition, as shown in Figure 5, the auxiliary operation through hole 41b, the fixing groove 45 is inserted into the locking projection (54) formed to protrude to the outside of the pressure absorber 50 is fixed to the blocking plate. Note that it is formed to interpolate into the interior of the (41).

이와 같이 구성된 본 발명은 제1오리피스링(51)과 제2오리피스링(52) 사이에 오리피스메쉬(53)가 설치된 압력흡수기(50)의 걸림돌기(54)를 작동유통과공(41b)에 형성된 고정홈(45)에 삽입고정 시키고, 상기 작동유통과공(41b)에 압력흡수기(50)가 설치된 오리피스(40)를 스트러트(10)의 내부에 설치되는 것에 의해, 오리피스(40)의 하부에서 순간적인 압력이 증가하는 경우, 상기 스트러트(10)의 하부에서 상부로 작동유(90)가 오리피스(40)의 작동유통과공(41b)을 통해 이동하면서 1차적으로 진동이나 충격이 감쇄되고, 2차적으로 압력흡수기(50)의 오리피스메쉬(53) 저항과 작동유(90)의 표면장력으로 작동유(90)의 흐름을 방해하다가 급격한 압력증가와 작동유(90)의 흐름 증가량이 오리피스메쉬(53)의 표면장력보다 큰 경우 작동유(90)가 오리피스메쉬(53)를 통과하여 흐르면서 압축 및 충격에너지를 흡수하게 된다.According to the present invention configured as described above, the engaging protrusion 54 of the pressure absorber 50 provided with the orifice mesh 53 between the first orifice ring 51 and the second orifice ring 52 is connected to the operation through hole 41b. The orifice 40 is installed in the fixing groove 45 and the pressure absorber 50 is installed in the working passage hole 41b. The lower part of the orifice 40 is installed inside the strut 10. When the instantaneous pressure increases in the hydraulic fluid 90 is moved through the operating through hole 41b of the orifice 40 from the lower portion of the strut 10 to the upper portion, vibration or shock is primarily attenuated, Secondly, the flow of the hydraulic fluid 90 is interrupted by the resistance of the orifice mesh 53 of the pressure absorber 50 and the surface tension of the hydraulic oil 90, and the sudden increase in pressure and the flow increase of the hydraulic oil 90 are orifice mesh 53. When the hydraulic fluid (90) flows through the orifice mesh (53) is greater than the surface tension of It is compressed and absorbs the impact energy.

따라서 이러한 본 발명은 요철이 심한도로나 비포장도로를 주행시 타이어에 진동이나 충격이 가해지는 경우에도 스트러트(10)의 하부에 위치되어 있던 일부의 작동유(90)는 가림판(41)의 작동유통과공(41a)을 통해 스트러트(10)의 상부로 이동되면서 1차적으로 진동 및 충격에너지를 감쇄시켜 흡수하고, 상기 가림판(41)의 저면과 접하면서 순간적으로 압력이 증가된 작동유(90)는 압력흡수기(50)의 오리피스메쉬(53)를 통과하면서 스트러트(10)의 상부로 이동되어 2차적으로 진동 및 충격에너지가 감쇄 및 흡수되도록 함으로서, 차실에 탑승한 승원의 승차감이 향상되도록 하는 효과가 있다.Therefore, in the present invention, even when vibrations or shocks are applied to the tires when driving on uneven roads or unpaved roads, some of the hydraulic oil 90 positioned at the lower part of the strut 10 passes through the operating flow of the shielding plate 41. While moving to the upper portion of the strut 10 through the ball 41a, primarily damping and absorbing vibration and impact energy, the hydraulic oil 90 in which the pressure is instantaneously increased while contacting the bottom surface of the screen plate 41 is Passing through the orifice mesh 53 of the pressure absorber 50 is moved to the upper portion of the strut 10 to attenuate and absorb the vibration and impact energy secondary, thereby improving the riding comfort of the occupant in the cabin have.

이상에서 살펴본 바와 같이 본 발명은 작동유통과공이 형성된 가림판의 일측부에 보조작동유통과공이 관통되어 형성되고, 상기 보조작동유통과공의 내부에는 제1오리피스링과 제2오리피스링 사이에 오리피스메쉬가 설치된 압력흡수기를 설치하여, 요철이 심한도로나 비포장도로를 주행시 타이어에 진동이나 충격이 가해지는 경우에도 스트러트의 하부에 위치되어 있던 일부의 작동유는 가림판의 작동유통과공을 통해 스트러트의 상부로 이동되면서 1차적으로 진동 및 충격에너지를 감쇄시켜 흡수하고, 상기 가림판의 저면과 접하면서 순간적으로 압력이 증가된 작동유는 압력흡수기의 오리피스메쉬를 통과하면서 스트러트의 상부로 이동되어 2차적으로 진동 및 충격에너지가 감쇄 및 흡수되도록 함으로서, 차실에 탑승한 승원의 승차감이 향상되도록 하는 매우 유용한 발명 이다.As described above, in the present invention, an auxiliary operation through hole is formed at one side of the shielding plate on which the operation through hole is formed, and an orifice is formed between the first orifice ring and the second orifice ring in the auxiliary operation through hole. By installing a pressure absorber with a mesh installed, even when the tires are vibrated or impacted while driving on uneven roads or unpaved roads, some of the hydraulic fluid located at the lower part of the struts is transferred to the strut through While moving to the upper part, the vibration and impact energy is primarily attenuated and absorbed, and the hydraulic oil whose pressure is instantaneously increased while contacting the bottom of the screen is moved to the upper part of the strut while passing through the orifice mesh of the pressure absorber. By damping and absorbing vibration and impact energy, even if the occupant's comfort in the cabin is improved, It is a very useful invention.

Claims (3)

스트러트(10)의 내경과 중심과 외경이 동일한 크기로 가림판(41)이 형성되고, 상기 가림판(41)에는 작동유통과공(41a)이 형성되어 지는 것에 있어서, 상기 작동유통과공(41a)이 형성된 가림판(41)의 일측부에 보조작동유통과공(41b)이 관통되어 형성되고, 상기 보조작동유통과공(41b)의 내부에는 제1오리피스링(51)과 제2오리피스링(52) 사이에 오리피스메쉬(53)가 설치된 압력흡수기(50)가 설치됨을 특징으로 쇽업소버용 오리피스구조.In the case that the inner plate, the center and the outer diameter of the strut 10 have the same size, and the blocking plate 41 is formed with a working through hole 41a, the operating through hole ( The auxiliary working flow through hole 41b is formed through one side of the shielding plate 41 formed with 41a), and the first orifice ring 51 and the second orifice are formed inside the auxiliary work flow through hole 41b. Orifice structure for shock absorber, characterized in that the pressure absorber 50 is installed between the ring 52, the orifice mesh 53 is installed. 청구항 1에 있어서, 상기 압력흡수기(50)는 도 4와 도 6에 도시하고 있는 바와 같이, 오일피스메쉬(53)가 견고히 설치되도록 함은 물론, 작동유통과공(41b)으로 부터 압력흡수기(50)가 분리되지 않도록 하는 걸림돌기(54)가 외측면에 형성되도록 제1오리피스링(51)과 제2오리피스링(52)이 프레스 압착됨을 특징으로 쇽업소버용 오리피스구조.The pressure absorber 50, as shown in Figures 4 and 6, the oil piece mesh 53 is firmly installed, as well as the pressure absorber from the working passage hole 41b ( The orifice structure for shock absorber, characterized in that the first orifice ring (51) and the second orifice ring (52) are press-pressed so that the engaging protrusion (54) is formed on the outer surface to prevent the separation (50). 청구항 1에 있어서, 상기 보조작동유통과공(41b)에는 도 5에 도시하고 있는 바와 같이, 압력흡수기(50)의 외측부로 돌출되어 형성된 걸림돌기(54)가 삽입되어 고정되도록 하는 고정홈(45)이 가림판(41)의 내부로 내삽지게 형성됨을 특징으로 쇽업소버용 오리피스구조.The fixing groove 45 of claim 1, wherein the auxiliary operation through hole 41b is inserted with a locking protrusion 54 formed to protrude outward of the pressure absorber 50, as shown in FIG. Orifice structure for the shock absorber, characterized in that is formed to be inserted into the inside of the shielding plate (41).
KR1019990050423A 1999-11-13 1999-11-13 Orifice structure for a shock absorber KR100330045B1 (en)

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