KR930005181Y1 - Fluid pressure shock absorber in vehicle - Google Patents
Fluid pressure shock absorber in vehicle Download PDFInfo
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- KR930005181Y1 KR930005181Y1 KR2019910001097U KR910001097U KR930005181Y1 KR 930005181 Y1 KR930005181 Y1 KR 930005181Y1 KR 2019910001097 U KR2019910001097 U KR 2019910001097U KR 910001097 U KR910001097 U KR 910001097U KR 930005181 Y1 KR930005181 Y1 KR 930005181Y1
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- valve
- piston
- base
- elastic
- shock absorber
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Classifications
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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
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
- F16F9/3485—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of supporting elements intended to guide or limit the movement of the annular discs
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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
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
Abstract
내용 없음.No content.
Description
제1도는 통상적인 유압식 쇽업소오버의 종단면도.1 is a longitudinal sectional view of a conventional hydraulic shock-over.
제2도는 본 고안에 의한 쇽업소오버의 종단면도.Figure 2 is a longitudinal cross-sectional view of the shop over according to the present invention.
제3, 4도는 본 고안의 요부인 탄성체 밸브의 외관사시도.3 and 4 is an external perspective view of the elastic valve which is the main part of the present invention.
제5, 6도는 본 고안의 요부인 탄성체 밸브의 단면도.5 and 6 are cross-sectional views of the elastic valve which is the main part of the present invention.
제7도, 제8도는 본 고안에 의한 쇽업쇼오버의 작동상태도로서,7 and 8 are operation state diagrams of the shock-up showover according to the present invention,
제7도는 압축시의 상태도이고,7 is a state diagram at the time of compression,
제8도는 인장시의 상태도이다.8 is a state diagram at the time of tensioning.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
60 : 피스톤벨브부 63a : 밸브몸체60: piston valve portion 63a: valve body
64a : 밸브공 66, 75 : 탄성체밸브64a: valve hole 66, 75: elastic valve
69 : 보강태 68, 76 : 반구형홈69: reinforcement 68, 76: hemispherical groove
69, 77 : 테이퍼홀 70a : 베이스밸브부69, 77: taper hole 70a: base valve part
71a, 72a : 디스크밸브71a, 72a: disc valve
본 고안은 자동차에 사용되는 유압식 쇽업소오버(shock absorber)에 관련된 것으로, 더욱 상세히는 상기 쇽업소오버의 베이스밸브부 및 피스톤밸브부에 가해지는 유압의 충격속도의 따라서 유량변화가 발생되어 적절한 감쇠력을 갖는 자동차용 쇽업소오버에 관한 것이다.The present invention relates to a hydraulic shock absorber used in an automobile, and more particularly, a flow rate change is generated according to the hydraulic shock speed applied to the base valve portion and the piston valve portion of the shock absorber. It relates to a car shock absorber having a.
일반적으로 쇽업소오버는 주행중 노면 상태에 따른 차륜의 고유진동으로부터 액슬스프링(axle spring)을 보호하고 차체에서 발생되는 충격을 빨리 감쇠시켜 승차감을 향상시키기 위한 것이다.In general, the shock-absorber is to protect the axle spring from the natural vibration of the wheel according to the road surface condition while driving and to attenuate the shock generated in the vehicle body to improve the riding comfort.
이러한 기술과 관련된 종래의 것으로는 제1도와 같이 구성되어 있는 리이스프링(Leaf spring, 미도시)의 핀에 고정하기 위한 고정몸체(10)와, 피스톤로드(piston rod, 50)를 안내하는 로드가이드(20)에 의해 내, 외 실린더(30, 40)가 고정지지되어 있으며, 상기 피스톤로드(50)하단에는 피스톤밸브부(60)가 장착되어 있고 내실린더(30)하단에는 베이스 밸브부(70)가 장착되어 있다.Conventional ones related to this technique include a rod body for guiding the fixed body 10 and a piston rod 50 for fixing to pins of a leaf spring (not shown) configured as shown in FIG. The inner and outer cylinders 30 and 40 are fixedly supported by 20, and a piston valve part 60 is mounted below the piston rod 50 and a base valve part 70 below the inner cylinder 30. ) Is installed.
상기 베이스밸브부(70)는 베이스밸브(74)가 다수의 통공(73)이 천설된 두개의 디스크밸브(71, 72)에 의해 고정지지되어 있다.The base valve unit 70 is fixed to the base valve 74 by two disk valves 71 and 72 in which a plurality of through holes 73 are installed.
상기 피스톤밸브부(60)는 상, 하스프링(62)(62')의 사이에서 탄력설치된 일방에 밸브공(64')이 천공된 디스크밸브(65)와 포팻밸브(poppet valve)(61)사이에 다수의 밸브공(64)이 천설된 밸브몸체(63)가 설치되어 있다.The piston valve unit 60 is a disk valve 65 and a poppet valve 61 in which a valve hole 64 'is perforated in one of the upper and lower springs 62 and 62'. A valve body 63 in which a plurality of valve holes 64 are laid in between is provided.
이러한 종래의 쇽업소오버는 외부로부터 충격(외부힘)이 가해지면 내실린더(30)의 하방의 오일이 피스톤 밸브부(60) 밸브몸체(63)의 일측밸브공(64)을 통하여 디스크밸브(65)을 밀면서 거의 저항없이 내실린더(30)의 상부로 오일이 통과되고 베이스밸브부(70)의 디스크밸브(71, 72) 및 베이스밸브(74)를 통과하여 외실린더(40)로 압압되면서 하강되는 피스톤로드(50)의 고유진동을 흡수하여 감쇠력을 발생한다.In this conventional shock-over, when the impact (external force) is applied from the outside, the oil below the inner cylinder 30 is discharged through the one side valve hole 64 of the piston body 60 and the valve body 63. While pushing 65, oil is passed through the upper portion of the inner cylinder 30 with almost no resistance, and is pressed into the outer cylinder 40 through the disk valves 71 and 72 and the base valve 74 of the base valve portion 70. Absorbs the natural vibration of the descending piston rod 50 generates a damping force.
또, 외부로부터 가해지는 힘이 제거되면 내실린더(30)의 상방에 유입된 오일이 피스톤밸브부(60)의 상방의 디스크밸브(65)의 밸브공(64')과 밸브몸체(63)의 밸브공(64)을 통하여 스프링(62')에 탄력설치된 포팻밸브를 밀고 유입되면서 피스톤 밸브부(60)의 항하압력이 같아질때까지 피스톤로드(50)가 상승되면서 고유진동을 흡수하여 감쇠력을 발생한다.When the force applied from the outside is removed, the oil introduced into the upper cylinder 30 is discharged from the valve hole 64 'of the disk valve 65 above the piston valve 60 and the valve body 63. The piston rod 50 is raised until the falling pressure of the piston valve portion 60 is equalized while pushing the poppet valve elastically installed in the spring 62 'through the valve hole 64, absorbing natural vibration to generate a damping force. do.
그러나, 이러한 종래의 쇽업소오버는 베이스밸브부(70)의 베이스밸브(74)와 피스톤밸브부(60)의 포팻밸브(61)가 탄성이 없는 재료(예를 들면 금속제)로 되어 있으므로 가해지는 유압의 충격속도에 따라 유로면적(베이스벨브부와 피스톤밸브부)을 가변시킬 수 없는 것이었다.However, such a conventional shock-over is applied because the base valve 74 of the base valve portion 70 and the poppet valve 61 of the piston valve portion 60 are made of an inelastic material (for example, made of metal). The flow path area (base valve portion and piston valve portion) could not be changed depending on the impact speed of the hydraulic pressure.
따라서 주행중 노면상태에 따라 액슬스프링이 받는 충격에 의해 발생되는 고유진동을 효과적으로 흡수감쇠치 못하여 승차감을 더욱 좋게할 수 없는 것이었다.Therefore, it was not able to effectively absorb and damp the natural vibration caused by the impact of the axle spring according to the road surface condition while driving, so that the riding comfort could not be improved.
본 고안은 상기한 바와 같은 종래의 문제점들을 해소하기 위해 안출된 것으로서, 그 목적은 베이스밸브부와 피스톤밸브부에 탄성을 갖는 탄성체밸브로 대체마련하여 가해지는 유압의 외부조건에 따라 밸브의 유로면적이 가변되고 이에따라 충격에 의한 고유진동을 더욱 효과적으로 흡수감쇠시켜 승차감이 더욱 좋아지는 자동차용 유압식 쇽업소오버를 제공하는데 있다.The present invention has been made to solve the above-mentioned problems, the purpose of which is the flow path area of the valve according to the external pressure of the hydraulic pressure applied to replace the elastic valve having elasticity in the base valve portion and the piston valve portion It is to provide a hydraulic hydraulic shock-absorber for the vehicle that is variable and thereby more effectively absorbs and attenuates the natural vibration caused by the impact.
이하에서 본 고안은 첨부도면에 따라 더욱 상세하게 설명하면 다음과 같다.The invention is described below in more detail according to the accompanying drawings.
즉, 본 고안은 제2도 및 제4도에 도시한 바와 같이 베이스벨브부(70a)는 하나 또는 복수의 배르공(73a)이 천설된 두개의 디스크밸브(71a, 72a)사이에 탄성을 갖는 탄성체밸브(75)가 삽입내장되어 있고, 피스톤밸브(60a)는 다수의 밸브공(64a)이 천설된 밸브몸체(63a) 및 디스크밸브(65a)사이에 탄성을 갖는 탄성을 갖는 탄성체밸브(66)가 삽입내장되어 있다.That is, the present invention, as shown in FIGS. 2 and 4, the base valve portion 70a has elasticity between two disk valves 71a and 72a in which one or a plurality of barrel holes 73a are installed. An elastic valve 75 is inserted therein and the piston valve 60a has an elastic valve 66 having elasticity between the valve body 63a on which the plurality of valve holes 64a are laid and the disk valve 65a. ) Is embedded.
상기 탄성체밸브(75)는 반구형홈(76)의 상단에 상하단으로 확개된 테이퍼 홀(77)이 천설되어 있고, 상기 탄성체밸브(66)는 외부에 경질의 보강태(67)가 형성되어 있고 그 내부에 탄성을 갖는 재료로되며, 반구형홈(68)의 상단에 상하단으로 확대된 테이퍼홀(69)이 천설되어 있다.The elastic valve 75 has a tapered hole (77) extending up and down at the upper end of the hemispherical groove (76), the elastic valve 66 has a hard reinforcement (67) is formed on the outside It is made of a material having elasticity therein, and a tapered hole 69 extending up and down is formed at the upper end of the hemispherical groove 68.
상기 탄성체밸브(66, 75)의 테이퍼호(69, 77)이 갖는 경사각을 적절히 조절하거나, 피스톤로드(50)의 피붓직경을 조절하므로서 쇽업소오버의 감쇠력을 변화시킬 수 있다.The damping force of the shock absorber can be changed by appropriately adjusting the inclination angles of the tapered arcs 69 and 77 of the elastic valves 66 and 75 or by adjusting the diameter of the piston rod 50.
도면중 73b는 디스크밸브(72a)의 보스를, A, B, C는 오일실을 나타낸 것이다.In the figure, 73b shows the boss of the disc valve 72a, and A, B, and C show the oil chamber.
이와 같이 구성된 본 고안을 통해서 쇽업소오버에 가해지는 외부조건에 따라 첨부된 도면 제7도 및 제8도를 참조하여 탄성체밸브(66, 75)의 작용효과를 설명하기로 한다.Through the present invention configured as described above with reference to the accompanying drawings 7 and 8 according to the external conditions applied to the shock-absorber will be described the operation and effect of the elastic valve (66, 75).
즉, 첨부된 도면 제7도와 같이 외부로부터 큰 충격이 가해질때는 (압축상태)는 내실린더(30)의 압력이 크게 되어 베이스밸브부(70a) 및 피스톤밸브부(60a)의 탄성체밸브(75, 66)에 형성된 테이퍼홀(77, 69)이 확개되고 이로인해 빠른 속도로 피스톤로드(50)가 하강되면서 고유진동을 흡수완화시켜 빠르게 감쇠력이 발생되는바, 이를 좀더 구체적으로 살펴보면 피스톤밸브부(60a)의 탄성체밸브(66)의 테이퍼홀(69)과 피스톤로드(50)사이를 통하여 A실의 오일이 B실로 빠짐과 동시에 베이스밸브부(70a)의 탄성체밸브(75)의 테이퍼홀(77)과 상부 디스크밸브(72a)의 밸브공(73a)을 통하여 하부 디스크 밸브(71a)의 중앙밸브공(73a)을 통하여 A실의 오일이 C실로 빠진다.That is, when a large impact is applied from the outside as shown in FIG. 7 (compressed state), the pressure of the inner cylinder 30 becomes large, and the elastic valve 75 of the base valve portion 70a and the piston valve portion 60a is increased. Tapered holes (77, 69) formed in the 66 is expanded and thereby the piston rod 50 is lowered at a high speed, thereby absorbing natural vibrations and absorbing natural vibrations, thereby quickly generating a damping force. The oil of chamber A is drained to chamber B through the taper hole 69 of the elastic valve 66 of the elastic valve 66 and the taper hole 77 of the elastic valve 75 of the base valve part 70a. The oil of chamber A is discharged into chamber C through the central valve hole 73a of the lower disk valve 71a through the valve hole 73a of the upper disk valve 72a.
이때, 피스톤밸브부(60a)의 탄성체밸브(66)의 테이퍼홀(69)과 피스톤로드(50)의 외경과의 간격과 베이스밸브부(70a)의 탄성체밸브(75)의 테이퍼홀(77)과 상부 디스크밸브(72a)중앙의 보스(73b)외경과의 간격을 압축정도, 즉 압축속도에 따라 차이가 나게되므로 피스톤로드(50)의 압축속도에 따른 유량의 정도에 따라 탄성체밸브(66, 75)는 변형율이 다르게 되므로 이에 연유한 마찰손실, 즉 탄성체밸브(66, 75)의 변형에너지의 대한 손실(저항)이 발생함으로서 압축속도에 비례하는 감쇠력을 얻을 수 있다.At this time, the gap between the taper hole 69 of the elastic valve 66 of the piston valve part 60a and the outer diameter of the piston rod 50 and the taper hole 77 of the elastic valve 75 of the base valve part 70a The distance between the outer diameter of the upper disk valve 72a and the boss 73b of the center is different depending on the degree of compression, that is, the compression speed, so that the elastic valve 66 according to the degree of flow rate according to the compression speed of the piston rod 50. Since 75) has a different strain rate, a frictional loss, that is, a loss (resistance) of deformation energy of the elastic valves 66 and 75 is generated, and thus a damping force proportional to the compression speed can be obtained.
또한 외부로부터 작은 충경이 가헤질때는 내실린더(30)의 압력에 큰 변화가 없어 베이스밸브부(70a) 및 시프톤밸브부(60a)의 탄성체밸브(75, 66)에 형성된 테이퍼홀(77, 69)이 변화되지 않고 이에따라 느린속도로 피스톤로드(50)가 하강되면서 고유진동을 흡수완화시켜 감쇠력이 발생하게 된다.In addition, when a small diameter is applied from the outside, the pressure of the inner cylinder 30 does not change so that the taper holes 77 formed in the elastic valves 75 and 66 of the base valve part 70a and the shift tone valve part 60a are formed. 69) does not change, and as a result, the piston rod 50 is lowered at a slow speed, thereby absorbing natural vibrations and thereby damping force.
이와반대로 첨부된 도면 제8도에서와 같이 인장상태(외력의 제거시)에는 제7도와 반대로 피스톤밸브부(60a)에서는 B실의 오일이 A실로 빠지고 동시에 베이스 벨브부(70a)에서는 C실의 오일이 A실로 보충된다.On the contrary, in the state of tension (when the external force is removed), as shown in FIG. 8, the oil of the B chamber is discharged into the A chamber in the piston valve portion 60a and the C chamber of the base valve portion 70a. Oil is replenished with Room A.
이와 같은 작동에 있어서도 전술한 바와 같이 탄성체밸브(66, 75)의 변형작동으로 동일한 감쇠효과의 구득이 가능한 것이다.Also in this operation, the same damping effect can be obtained by the deformation operation of the elastic valves 66 and 75 as described above.
상술한 바와 같이 본 고안의 쇽업소오버는 외부로부터 가해지는 외부조건에 가해지는 외부조건 에 따라 베이스 밸브부(70a) 및 피스톤밸브부(60a)의 탄성체밸브(75, 66)에 천설된 테이퍼홀(77, 69)이 가해지는 유량의 속도에 비례하여 확개가능하므로서 주행중 노면상태에 따라 액슬스프링에 받는 충격에 의해 발생하는 고유진동을 빨리 감쇠시켜 승차감을 좋게하는 특징이 있다.As described above, the shock-absorber according to the present invention has tapered holes installed in the elastic valves 75 and 66 of the base valve part 70a and the piston valve part 60a according to the external condition applied to the external condition applied from the outside. As it is possible to expand in proportion to the speed of the flow rate applied to (77, 69), the natural vibration generated by the impact caused by the axle spring is rapidly attenuated according to the road surface condition while driving, thereby improving the riding comfort.
또, 베이스밸브부(70a)와 피스톤밸브부(60a)의 부품수가 줄어들어 간단한 구조로되고 조립성과 원가절감면에서 유리한 잇점이 있는 것이다.In addition, the number of parts of the base valve portion 70a and the piston valve portion 60a is reduced, resulting in a simple structure, which is advantageous in terms of assembly and cost reduction.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910001097U KR930005181Y1 (en) | 1991-01-26 | 1991-01-26 | Fluid pressure shock absorber in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910001097U KR930005181Y1 (en) | 1991-01-26 | 1991-01-26 | Fluid pressure shock absorber in vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920014969U KR920014969U (en) | 1992-08-14 |
| KR930005181Y1 true KR930005181Y1 (en) | 1993-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910001097U KR930005181Y1 (en) | 1991-01-26 | 1991-01-26 | Fluid pressure shock absorber in vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930005181Y1 (en) |
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1991
- 1991-01-26 KR KR2019910001097U patent/KR930005181Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR920014969U (en) | 1992-08-14 |
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