WO2019000720A1 - Amortisseur hydraulique à réglage automatique et procédé de réglage associé - Google Patents

Amortisseur hydraulique à réglage automatique et procédé de réglage associé Download PDF

Info

Publication number
WO2019000720A1
WO2019000720A1 PCT/CN2017/106989 CN2017106989W WO2019000720A1 WO 2019000720 A1 WO2019000720 A1 WO 2019000720A1 CN 2017106989 W CN2017106989 W CN 2017106989W WO 2019000720 A1 WO2019000720 A1 WO 2019000720A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
piston
valve
suspension
discharging
Prior art date
Application number
PCT/CN2017/106989
Other languages
English (en)
Chinese (zh)
Inventor
黄永宁
Original Assignee
黄永宁
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黄永宁 filed Critical 黄永宁
Publication of WO2019000720A1 publication Critical patent/WO2019000720A1/fr

Links

Images

Classifications

    • 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
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
    • 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
    • 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
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements

Definitions

  • the invention relates to the technical field of shock absorbers, in particular to an autonomously adjustable hydraulic shock absorber and a regulating method thereof.
  • the damper is designed to support the weight of the vehicle body and to suppress and prevent vibration from being transmitted from the road surface to the vehicle body, contribute to improved ride comfort, and protect the loaded cargo and various components of the vehicle.
  • shock absorbers include a cylinder filled with oil, a reciprocating piston rod coupled to the vehicle body, and a piston valve coupled to the lower end of the piston rod and oil that is movable within the cylinder and controls operation.
  • the hydraulic oil on the market structure cannot be effectively effluxed, and the vehicle cannot achieve a smooth and comfortable effect when the vehicle encounters a low speed and uneven road surface during driving. Especially in the car sharp turn process, the vehicle damping effect is not good.
  • the present invention provides a self-regulating hydraulic shock absorber with high smoothness, comfort, safety and smoothness, and an adjustment method thereof.
  • the present invention provides an autonomously-adjustable hydraulic shock absorber comprising an outer cylinder, an inner cylinder, a damping shaft, an autonomous regulating valve and a suspension piston assembly; the inner cylinder is sleeved in the outer cylinder, The autonomous regulating valve and the suspension piston assembly are sequentially installed in the inner cylinder from bottom to top, and the lower end of the damping shaft is fixed in the suspension piston assembly, and the autonomous regulating valve and the lower end of the damping shaft are contactably connected. ;
  • the floating piston assembly is provided with a first oil filling valve piece, a replenishing oil piston and a first oil discharging valve piece, and the autonomous regulating valve is provided with a second oil filling valve piece;
  • the number of the first oil-filling valve piece and the first oil-discharging valve piece are plural, and one end of the replenishing oil piston is embedded with a first receiving groove, and the other of the replenishing oil piston a second receiving groove is embedded in the end, the first oil drain valve piece is installed in the first receiving groove, the first oil filling valve piece is installed in the second receiving groove; the notch of the first receiving groove Between the oil discharge valve piece and a first spring for limiting the movement stroke of the first oil discharge valve piece, and the groove between the second receiving groove and the first oil filling valve piece is provided a second spring for limiting a movement stroke of the first oil discharge valve piece; a bottom of the first receiving groove of the makeup oil discharge piston is provided with a plurality of piston oil discharges below the first oil discharge valve piece a hole, and each piston oil drain hole communicates with the second receiving groove; the supplementary oil piston is provided with a plurality of fixing columns, and each of the fixing columns has a diameter larger than a diameter of the oil drain hole and extends to
  • the replenishing oil piston When the replenishing oil piston is ascending upward, the direction of the oil pressure is toward the first charge valve piece, and the first charge valve piece is discharged under the action of the oil pressure; and after discharging, the first charge valve piece is ejected and the oil is replenished.
  • the holes are filled with oil.
  • the piston positioning pad is fixed at the notch of the first receiving groove, the two ends of the first spring are connected between the piston positioning pad and the oil discharge valve chip group; the notch of the second receiving groove A piston positioning piece is disposed, and both ends of the second spring are connected between the piston positioning piece and the charge valve piece set.
  • the suspension piston assembly further comprises a support rod and a support plate, the support plate is located below the first charge valve piece, one end of the support rod is fixedly connected with the support plate, and the other end of the support rod Passing through the oil drain valve set in turn, and after the first spring is fixedly connected to the inner side of the piston positioning pad;
  • the lower end of the damping shaft is sleeved in the support rod.
  • the autonomous regulating valve further comprises an oil-discharging copper piston, an oil-discharging column, a tapered oil-discharging needle and a regulating valve base; wherein the upper end of the adjusting valve base is fixed on the pressing piece, and the two are combined into a cavity, An oil drain column is installed in the cavity, a piston spring is mounted in the oil drain column, the oil drain copper piston is placed in the oil drain column and the lower part is sleeved in the piston spring; the oil drain copper piston is An oil discharge needle spring is mounted, and the tapered oil discharge needle is sleeved in the oil discharge needle spring;
  • the upper end of the oil-discharging copper piston defines a first oil-discharging hole corresponding to the tapered portion of the tapered oil-discharging needle; the outer wall of the oil-discharging column is uniformly provided with a plurality of second oil-discharging holes;
  • the oil pressure in the inner cylinder increases, the oil pressure also acts on the oil-discharging copper piston. After the oil-discharge copper piston is subjected to a large pressure, the oil discharged from the tapered oil-discharging needle has reached the limit, so that the entire oil-discharging copper After the piston is subjected to more pressure, it descends in the oil drain column, and the second oil drain hole of the oil discharge column opens the oil discharge of the second step.
  • the plurality of second oil drain holes form a plurality of oil drain hole groups, and the plurality of oil drain hole groups are sequentially distributed from the top to the bottom on the outer wall of the oil discharge column; in the oil discharge process, according to the oil pressure
  • the oil drain hole group is sequentially opened from the top to the bottom;
  • the oil drain groove is disposed in the lower end of the oil drain column, and the groove size of the oil drain groove is smaller than the size of the lower end of the oil discharge copper piston;
  • the piston can be lowered into the piston spring to contact the notch of the oil sump.
  • the outer periphery of the upper end of the oil-discharge copper piston is outwardly provided with a limiting block for limiting the downward position thereof, and the diameter of the limiting block is greater than or equal to the diameter of the piston spring; a through hole is disposed in the through hole, wherein the connecting rod is connected with the upper end surface of the oil discharge copper piston; and the connecting rod is connected with the shock absorbing shaft; the outer surface of the upper pressing piece is sequentially arranged from top to bottom A piston down tower spring and the second charge valve piece are provided.
  • a buffer rubber sleeve is disposed between the outer wall of the damping shaft and the inner wall of the inner cylinder; and the outer wall of the damping shaft is disposed with a stroke limit position above the buffer rubber sleeve.
  • an axial positioning fixing sleeve is disposed between the upper end of the outer cylinder and the inner cylinder; and a fixed sleeve oil-free bearing disposed outside the inner cylinder is disposed between the axial positioning fixing sleeve and the damping shaft;
  • An upper gland is fixed to an upper end of the outer cylinder, and an upper seal of the shock absorbing shaft is provided with an oil seal, the oil seal and the upper gland and the shaft
  • the positioning fixing sleeves are connected by an oil seal spring.
  • the present invention also provides an adjustment method of an autonomously-adjustable hydraulic shock absorber.
  • the shock absorber When the shock absorber is in operation, the shock-absorbing shaft and the suspension piston assembly are operated up and down, and oil is generated in the inner cylinder during operation.
  • the damper shaft and the suspension piston assembly shall be in any position regardless of the position.
  • the charge valve When the charge valve is opened, the oil discharge valve must be closed; when the oil discharge valve is opened, the oil filling valve It must be closed; and the damper shaft and suspension piston assembly must be fully oiled regardless of the position of the upper and lower ends of the suspension shaft and suspension piston assembly.
  • the beneficial effects of the present invention are: compared with the prior art, the self-adjusting hydraulic shock absorber provided by the present invention and the adjusting method thereof, during the operation of the shock absorber, no matter where it is, that is, in the piston
  • the drain valve When the charge valve is opened, the drain valve must be closed; when the drain valve is open, the charge valve must be closed.
  • the shock absorbing shaft and the suspension piston assembly must be kept full at the upper and lower ends regardless of the running to any position, ensuring that the damper does not cause white space during normal operation.
  • the shock absorber is actually installed on the vehicle for testing. When the vehicle is in normal driving, the ride, comfort and safety are improved to different extents.
  • the four-wheel grip performance is good, the vehicle body is stable, even if the road surface condition is not good, there is no round off the ground in the four wheels, especially in the car sharp turn process, the whole vehicle shock absorber is stable, four-wheeled
  • the ground performance is particularly prominent, the friction coefficient of the four wheels and the ground is increased, and the braking performance is improved.
  • Figure 1 is a cross-sectional view of the self-regulating hydraulic shock absorber of the present invention
  • Figure 2 is a cross-sectional view of the suspension piston assembly of the present invention
  • Figure 3 is a first perspective perspective view of the replenishing and exhausting piston of the present invention.
  • Figure 4 is a perspective view of the second angle of the replenishing and exhausting piston of the present invention.
  • Figure 5 is a cross-sectional view of the autonomous regulating valve of the present invention.
  • Suspension piston assembly 2. Self-regulating valve 3. Outer cylinder 4. Inner cylinder 5. Damping shaft 6. Buffer rubber sleeve 7. Stroke limit gear 8. Axial positioning fixing sleeve 9. Fixed sleeve oil-free bearing 30, upper gland 40, oil seal 50, connecting rod
  • the inner cylinder is sleeved outside
  • the autonomous regulating valve and the suspension piston assembly are sequentially installed in the inner cylinder from bottom to top, and the lower end of the damping shaft is fixed in the suspension piston assembly, and the autonomous regulating valve and the damping shaft are under The end can be in contact with the connection;
  • the suspension piston assembly 1 is provided with a first oil filling valve plate 11, a replenishing oil piston and a first oil discharge valve plate 12, the autonomous regulating valve 2 is provided with a second oil filling valve plate 29;
  • the number of the first oil-filling valve piece and the first oil-discharging valve piece are multiple, and the first receiving groove 101 is embedded in one end of the replenishing oil piston.
  • the other end of the oil piston is embedded with a second receiving groove 102, the oil drain valve chip group is installed in the first receiving groove, and the oil filling valve chip group is installed in the second receiving groove;
  • the first receiving A first spring 13 for limiting the movement stroke of the oil discharge valve piece group is disposed between the groove of the groove and the oil discharge valve piece, and the groove of the second storage groove is matched with the charge valve piece group Between the second spring 14 for limiting the movement stroke of the oil drain valve chip set;
  • a plurality of oil discharge holes 15 located under the oil discharge valve valve group are disposed at a bottom of the first accommodating groove of the replenishing oil piston, and each oil discharge hole communicates with the second accommodating groove;
  • a plurality of fixing columns 16 are disposed in the oil piston, and each of the fixing columns is an oil discharging hole 161 having a diameter larger than a diameter of the oil discharging hole and extending to a notch of the first receiving groove;
  • the oil valve plate group is both the oil filling hole 162, and one end of the oil discharging hole is at the same horizontal plane as the oil filling hole;
  • a piston positioning pad 17 is fixed at the notch of the first receiving groove, and both ends of the first spring are connected between the piston positioning pad and the oil discharge valve chip group.
  • a piston positioning piece 18 is disposed at the notch of the second receiving groove, and both ends of the second spring are connected between the piston positioning piece and the charge valve piece set.
  • the structure further includes a support rod 19 and a support plate 191, the support plate is located below the charge valve plate group, one end of the support rod is fixedly connected with the support plate, and the support rod is further One end passes through the oil discharge valve plate group in sequence, and the first spring is fixedly connected to the inner side of the piston positioning pad.
  • the fixed column is evenly distributed around the outer periphery of the support rod, thereby ensuring the uniformity of the oil replenishment and the oil discharge, thereby ensuring that the valve piece does not have an offset phenomenon during the movement.
  • the central portion of the inner wall of the charge venting piston is sleeved in the piston guide belt 192.
  • the suspension piston assembly is mainly composed of a replenishing oil piston, a drain valve piece and a charge valve piece, and an improved design of the oil drain hole, the oil drain hole and the oil filling hole position, all the oil filling holes and the oil drain holes are Set in the same plane; when the oil filling hole and the oil drain hole are opened or closed, the valve piece in the piston is in a plane closed state, no matter how much oil pressure is generated in the cylinder body, the piston will not be caused by excessive pressure.
  • valve piece The deformation of the valve piece inside is damaged; at the same time, the valve piece is not displaced, and the oil filling valve piece and the oil discharge valve piece are opened and closed very sensitively under the oil pressure force; and the valve piece is opened and closed completely by the inner cylinder
  • the oil pressure is determined, and the design of the suspension valve plate is a good solution to the problem that the valve piece is easily deformed and damaged, ensuring the service life of the shock absorber and achieving good results.
  • the self-regulating valve includes an oil-discharging copper piston 20, an oil draining rod 21, a tapered oil-discharging needle 22 and a regulating valve base 23; the upper end of the adjusting valve base is fixed with the upper pressing piece 24, and the two are combined into one cavity.
  • the oil discharge column is installed in the cavity, and a piston spring 25 is installed in the oil discharge column.
  • the oil discharge copper piston is placed in the oil discharge column and the lower part is sleeved in the piston spring; the oil discharge copper piston is installed with oil discharge.
  • a needle spring 26 the tapered oil discharge needle is sleeved in the oil discharge needle spring;
  • the upper end of the oil discharge copper piston has a first oil discharge hole 201 adapted to the tapered portion of the tapered oil discharge needle; the outer wall of the oil discharge column is uniformly provided with a plurality of second oil discharge holes 211;
  • the oil pressure in the inner cylinder increases, the oil pressure also acts on the oil-discharging copper piston. After the oil-discharge copper piston is subjected to a large pressure, the oil discharged from the tapered oil-discharging needle has reached the limit, so that the entire oil-discharging copper After the piston is subjected to more pressure, it descends in the oil drain column, and the second oil drain hole of the oil discharge column opens the oil discharge of the second step.
  • the plurality of second oil drain holes form a plurality of oil drain hole groups, and the plurality of oil drain hole groups are sequentially distributed from the top to the bottom on the outer wall of the oil discharge column; in the oil discharge process, according to the oil
  • the group of pressure-increasing oil drain holes is sequentially opened from top to bottom.
  • an oil storage tank 212 is disposed in the lower end of the oil discharge column 21, and the size of the groove of the oil storage tank is smaller than the size of the lower end of the oil discharge copper piston; the oil discharge copper piston can descend to the piston spring.
  • the slots of the oil sump are in contact.
  • the oil storage tank is provided in the oil drain column to protect the copper hole type piston from colliding with the bottom of the oil drain column, and the hole type oil discharge copper piston is in contact with the oil surface in the oil storage tank groove. Buffering, the oil-discharge copper piston is not damaged by impact.
  • the outer periphery of the upper end of the oil discharge copper piston 20 is outwardly provided with a limiting block 202 for limiting the downward position thereof, and the diameter of the limiting block is greater than or equal to the diameter of the piston spring.
  • the oil discharge spring in the regulating valve is easy to be deformed and shortened during the compression process for a long time, and the limit block is set so that the oil discharge spring can only be brought into contact with the lower end of the limiting block at most; so that it does not exceed its own working Withstand the limits and work properly within its acceptable range.
  • the lower end of the regulating valve base 23 is fixed with a spring seal base 27, and the piston base 203 is mounted in the lower end of the oil draining copper piston.
  • the upper end of the oil drain column is provided with an extension column integrally formed therewith, and the upper pressure piece extends to be fixed in the extension column 213.
  • a through hole is arranged in the upper pressing piece, and a connecting rod 50 which can be in contact with the upper end surface of the oil discharging copper piston is installed in the through hole; and the connecting rod is connected with the damping shaft.
  • the outer surface of the upper pressing piece is sleeved with the piston down tower spring 28 and the second charge valve piece in order from top to bottom.
  • the oil draining copper piston is arranged in the oil discharge column of the regulating valve, and the tapered oil discharging needle is installed in the oil discharging copper piston, and the first step oil discharging is realized by the cooperation of the tapered oil discharging needle and the oil discharging copper piston in the downward process.
  • the oil discharge of the second step is realized by the oil drain column.
  • the two-step oil discharge of the regulating valve of the invention is specifically: the invention designs a stepped oil discharging mode,
  • the oil drain hole in the downhole copper piston of the tapered oil piston in the self-regulating valve is opened and drained.
  • This design is mainly for the vehicle when the speed is low during driving and the road surface is not large. It ensures the design of the vehicle is smooth and comfortable.
  • This is only the first step of the self-regulating valve in the oil discharge process.
  • the downward oil pressure in the inner cylinder generates the force only on the hole copper piston, so that the cylindrical spring in the copper piston tapered oil discharge needle is subjected to Press down, the cone-shaped oil discharge needle is opened downwards, and the oil is discharged moderately.
  • the oil pressure in the inner cylinder will increase. At this time, the oil discharge amount of the tapered oil discharge needle in the piston can no longer be adapted, and the oil pressure in the inner cylinder increases.
  • the oil pressure also acts on the hole piston. After the copper piston is subjected to a large pressure, the oil discharged from the tapered oil discharge needle has reached the limit, so that the entire hole copper piston is subjected to a large pressure after the oil discharge column. In the middle and lower reaches, the second step of the oil drain is opened.
  • the damper shaft and the suspension piston assembly shall be in any position regardless of the position.
  • the charge valve When the charge valve is opened, the oil discharge valve must be closed; when the oil discharge valve is opened, the oil filling valve It must be closed; and the damper shaft and suspension piston assembly must be fully oiled regardless of the position of the upper and lower ends of the suspension shaft and suspension piston assembly.
  • the charge valve sheets herein refer to the first and second charge valve sheets.
  • the self-adjusting hydraulic shock absorber provided by the invention and the adjusting method thereof are in the closed state when the shock absorber is in operation, that is, when the charge valve in the piston is opened, the oil drain valve is closed; When the drain valve is opened, the charge valve must be closed.
  • the damping shaft and the suspension piston assembly must maintain full oil at both the upper and lower ends, regardless of the position of the suspension, ensuring that the shock absorber is positive. There is no space during normal operation.
  • the shock absorber is actually installed on the vehicle for testing. When the vehicle is in normal driving, the ride, comfort and safety are improved to different extents.
  • the four-wheel grip performance is good, the vehicle body is stable, even if the road surface condition is not good, there is no round off the ground in the four wheels, especially in the car sharp turn process, the whole vehicle shock absorber is stable, four-wheeled
  • the ground performance is particularly prominent, the friction coefficient of the four wheels and the ground is increased, and the braking performance is improved.

Abstract

La présente invention concerne un amortisseur hydraulique à réglage automatique et un procédé de réglage associé, l'amortisseur comprenant un cylindre externe (3), un cylindre interne (4), un arbre d'absorption de choc (5), une valve de réglage automatique, et un ensemble de piston de suspension ; le cylindre interne (4) est emboîté dans le cylindre externe (3), et la valve de réglage automatique et l'ensemble de piston de suspension sont installés dans le cylindre interne (4) séquentiellement de bas en haut ; après la fixation d'une extrémité inférieure de l'arbre d'absorption de choc (5) à l'intérieur de l'ensemble de piston de suspension, la valve de réglage automatique et une extrémité de pointe inférieure de l'arbre d'absorption de choc (5) peuvent être en connexion de contact ; l'ensemble de piston de suspension est pourvu sur celui-ci d'une première feuille de valve de réapprovisionnement d'huile (12), d'un piston de réapprovisionnement et d'évacuation d'huile (10) et d'une première feuille de valve d'évacuation d'huile (11) ; la valve de réglage automatique est pourvue sur celle-ci d'une deuxième feuille de valve de réapprovisionnement d'huile (29).
PCT/CN2017/106989 2017-06-29 2017-10-20 Amortisseur hydraulique à réglage automatique et procédé de réglage associé WO2019000720A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710512427.3 2017-06-29
CN201710512427.3A CN107100955B (zh) 2017-06-29 2017-06-29 自主调节式液压减震器及其调节方法

Publications (1)

Publication Number Publication Date
WO2019000720A1 true WO2019000720A1 (fr) 2019-01-03

Family

ID=59663956

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/106989 WO2019000720A1 (fr) 2017-06-29 2017-10-20 Amortisseur hydraulique à réglage automatique et procédé de réglage associé

Country Status (2)

Country Link
CN (1) CN107100955B (fr)
WO (1) WO2019000720A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100955B (zh) * 2017-06-29 2023-02-03 黄永宁 自主调节式液压减震器及其调节方法
CN107165970B (zh) * 2017-06-29 2023-06-27 黄永宁 悬浮式阀片补排油活塞结构及其使用方法
CN109027102B (zh) * 2018-09-14 2020-05-29 施密特汽车管件(安徽)有限公司 一种减震器管件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147209A (ja) * 2003-11-12 2005-06-09 Showa Corp 車両の油圧緩衝装置
DE202005021063U1 (de) * 2005-11-18 2007-01-25 Hahn, Ulrich Einstellbarer Öldämpfer
CN202811972U (zh) * 2012-10-09 2013-03-20 重庆鼎合汽车零部件制造有限公司 一种汽车液压双筒式减震器
CN205371435U (zh) * 2015-12-24 2016-07-06 刘春暄 双缸减震器
CN107100955A (zh) * 2017-06-29 2017-08-29 黄永宁 自主调节式液压减震器及其调节方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853854A1 (de) * 1998-11-23 2000-05-25 Anton Pfeifer Bodenventil für 2-Rohrdämpfer
US7097016B2 (en) * 2003-09-05 2006-08-29 Tenneco Automotive Operating Company Inc. Fulcrum blow off valve for use in a shock absorber
CN2769608Y (zh) * 2005-02-07 2006-04-05 深圳市中车业成实业有限公司 轨道车辆用油压减振器
CN2775391Y (zh) * 2005-03-01 2006-04-26 付德海 双活塞双油封多档自动控制充气式汽车减振器
CN201748005U (zh) * 2010-06-25 2011-02-16 徐州徐工挖掘机械有限公司 分段式溢流阀
CN101982669A (zh) * 2010-11-04 2011-03-02 重庆中意减振器有限责任公司 一种减振器底阀
US9080629B2 (en) * 2012-09-07 2015-07-14 Tenneco Automotive Operating Company Inc. Multi-tuneable degressive valve
DE102014107708A1 (de) * 2014-06-02 2015-12-03 Lisega SE Ventil für Hydraulikdämpfer
CN203962828U (zh) * 2014-07-02 2014-11-26 杨浩 一种减震器
CN105090152B (zh) * 2015-09-11 2017-03-08 福州大学 一种二级双弹簧直动式溢流阀及其控制方法
CN105114514B (zh) * 2015-09-18 2018-01-30 深圳市中车业成实业有限公司 一种轨道机车车辆用油压减振器的底阀单元
CN106352010B (zh) * 2016-10-25 2018-07-24 苏州西捷克缓冲科技有限公司 阻尼力自动调节式油压缓冲器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147209A (ja) * 2003-11-12 2005-06-09 Showa Corp 車両の油圧緩衝装置
DE202005021063U1 (de) * 2005-11-18 2007-01-25 Hahn, Ulrich Einstellbarer Öldämpfer
CN202811972U (zh) * 2012-10-09 2013-03-20 重庆鼎合汽车零部件制造有限公司 一种汽车液压双筒式减震器
CN205371435U (zh) * 2015-12-24 2016-07-06 刘春暄 双缸减震器
CN107100955A (zh) * 2017-06-29 2017-08-29 黄永宁 自主调节式液压减震器及其调节方法

Also Published As

Publication number Publication date
CN107100955A (zh) 2017-08-29
CN107100955B (zh) 2023-02-03

Similar Documents

Publication Publication Date Title
US4280600A (en) Self-refilling hydraulic actuator
WO2019000720A1 (fr) Amortisseur hydraulique à réglage automatique et procédé de réglage associé
CN106348126B (zh) 一种缓慢回弹的电梯用液压极限缓冲装置
WO2019000719A1 (fr) Soupape de régulation automatique d'amortisseur de chocs et procédé de vidange d'huile en plusieurs étapes associé
CN109083965B (zh) 汽车悬挂系统用隔振装置及其设计方法
CN204025481U (zh) 弹簧减震器
KR20180083725A (ko) 쇽업소버
CN111609073A (zh) 一种飞机起落架缓冲器
CN104444695A (zh) 电梯适应性递进阻尼力的缓冲系统
CN104444693B (zh) 具有变阻尼力的电梯缓冲系统
US2595426A (en) Pneumatic suspension strut
CN206929264U (zh) 刚度可调减振器
CN107642575B (zh) 一种汽车双筒式减振器
KR20150021165A (ko) 유공압식 릴리프 밸브
CN204041850U (zh) 摩托车减震器
CN111365402B (zh) 一种磁流变液双向阻尼调节阀
CN207814079U (zh) 一种叉车起升油缸
US2199880A (en) Hydraulic shock absorber
CN107165970B (zh) 悬浮式阀片补排油活塞结构及其使用方法
CN205117886U (zh) 推力浮动缓冲工业炉液压油缸
CN104477730A (zh) 电梯具有适应性的阻尼装置
CN105358843A (zh) 流体压缸
US3887174A (en) Shock absorber and leveler unit
CN203659953U (zh) 一种用于移动储能电源车的空气减震装置
US1794981A (en) Shock absorber

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17915254

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17915254

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 04/05/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17915254

Country of ref document: EP

Kind code of ref document: A1