WO2020015536A1 - Amortisseur - Google Patents

Amortisseur Download PDF

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Publication number
WO2020015536A1
WO2020015536A1 PCT/CN2019/094642 CN2019094642W WO2020015536A1 WO 2020015536 A1 WO2020015536 A1 WO 2020015536A1 CN 2019094642 W CN2019094642 W CN 2019094642W WO 2020015536 A1 WO2020015536 A1 WO 2020015536A1
Authority
WO
WIPO (PCT)
Prior art keywords
compensation film
tubular casing
rod
end cover
bearing
Prior art date
Application number
PCT/CN2019/094642
Other languages
English (en)
Chinese (zh)
Inventor
何亮
Original Assignee
何亮
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 何亮 filed Critical 何亮
Publication of WO2020015536A1 publication Critical patent/WO2020015536A1/fr

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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
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods

Definitions

  • the invention relates to a damper.
  • a damper is a device that provides resistance to movement and reduces movement energy. It mainly includes a tubular casing piston, a piston rod, and a pressure medium filled in the tubular casing.
  • the tubular casing In order to prevent the pressure medium from leaking out, the tubular casing is generally a sealed structure, but the piston and the piston rod move up and down during operation, and the piston rod is in the tubular casing.
  • the volume in the body will change, causing the space in the tubular casing that is a pressure medium to change, that is, the pressure in the tubular casing will change, affecting the normal operation of the damper. Therefore, some compensation must be made for the aforementioned pressure change.
  • the purpose of the present invention is to overcome the above-mentioned technical shortcomings, and propose a damper to solve the technical problem that a certain pressure compensation is required when the damper works in the prior art.
  • a damper including:
  • a tubular casing with one end closed and the other open;
  • An end cover provided at the open end of the tubular casing
  • a bearing provided in an inner cavity of the tubular casing
  • a piston assembly includes a piston and a rod, the piston is disposed in an inner cavity of the tubular casing and can reciprocate and slide along the inner wall of the tubular casing; one end of the rod passes through the end cover and the bearing in order. And connected to said piston; and
  • the compensation film is a cup-shaped sleeve structure of a deformable material sleeved on the rod.
  • the opening of the cup-shaped sleeve is tightly connected to the inner wall of the tubular casing, and the bottom of the cup-shaped sleeve is connected to the Rod sealed connection
  • the compensation film and the piston divide the inner cavity of the tubular casing into a compensation chamber, a storage chamber and a pressure chamber in order from the open end to the closed end, and at least one of the piston components is provided for communication.
  • the fluid path of the storage chamber and the pressure chamber, and the bearing is provided with at least one fluid path for communicating with both sides thereof.
  • the beneficial effects of the present invention include: the compensation film provides pressure compensation for the damper when it works, and has a good seal against the pressure medium in the damper; the improved structure of the bearing stabilizes the movement of the piston rod, and can also Helps improve the stability and tightness of the compensation membrane, which can better control the pressure medium inventory and more simply and completely remove excess air.
  • FIG. 1 is a schematic view of a use state of the damper of the present invention
  • FIG. 2 is a schematic cross-sectional structure diagram of FIG. 1;
  • FIG. 3 is a schematic diagram of another use state of the damper of the present invention.
  • FIG. 4 is a schematic sectional structural view of FIG. 3;
  • FIG. 5 is a schematic sectional structural view of a compensation film positioning cylinder
  • FIG. 6 is a plan view of a compensation film positioning cylinder
  • FIG. 7 is a perspective structural diagram of a compensation film positioning cylinder
  • FIG. 8 is a schematic diagram of a three-dimensional structure of an embodiment of a compensation film
  • FIG. 9 is a schematic sectional structural view of an embodiment of a compensation film
  • FIG. 10 is a schematic view of a three-dimensional structure of another embodiment of a compensation film
  • FIG. 11 is a schematic cross-sectional structure diagram of another embodiment of a compensation film
  • FIG. 12 is a schematic perspective view of a bearing
  • Fig. 13 is a schematic sectional structural view of a bearing.
  • the present invention provides a damper including: a tubular casing 10, an end cover 20, a bearing 30, a piston assembly 40 and a compensation film 50.
  • the tubular casing 10 is closed at one end and open at the other end; an end cap 20 is provided at the open end of the tubular casing 10; and a bearing 30 is provided at an inner cavity of the tubular casing 10.
  • the piston assembly 40 includes a piston 41 and a rod 42.
  • the piston 41 is disposed in an inner cavity of the tubular casing 10 and can slide back and forth along the inner wall of the tubular casing 10.
  • the end cap 20 and the bearing 30 are connected to the piston 41.
  • the compensation film 50 is a cup-shaped sleeve structure of a deformable material sleeved on the rod 42.
  • the opening portion 51 of the cup-shaped sleeve is tightly connected to the inner wall of the tubular casing 10, and the bottom portion 52 of the cup-shaped sleeve is sealed. Sealed with the rod 42.
  • the compensation film 50 and the piston 41 divide the inner cavity of the tubular casing 10 into the compensation chamber 11, the storage chamber 12 and the pressure chamber 13 in order from the open end to the closed end, and the piston assembly 40 There is provided at least one fluid path for communicating the storage chamber 12 and the pressure chamber 13, and the bearing 30 is provided with at least one fluid path for communicating on both sides thereof.
  • the piston 41 and the rod 42 are connected to form a piston assembly 40.
  • the piston 41 is pushed into the tubular casing 10, and then the bearing 30 is sleeved on the rod 42 and inserted into the tubular casing 10.
  • the compensation film 50 is sleeved on the rod 42 and its opening is fed into the tubular casing 10 toward the closed end of the tubular casing 10, and a pressure medium is injected.
  • the open end of the tubular casing 10 is closed with an end cap 20.
  • a return spring or the like is sleeved on the rod 42 outside the body 10 to complete the assembly.
  • the pressure medium can be a pressure oil or an inert gas. .
  • the pressure it receives will drive the piston assembly 40 to move from the open end of the tubular casing 10 to its closed end, and the medium stored in the pressure chamber 13 can move to the reservoir along the fluid path of the piston 41 Inside the material chamber 12 and through the fluid path of the bearing 30, it reaches the compensation film 50.
  • the piston assembly 40 moves from the closed end of the tubular casing 10 to the open end thereof, so that the The medium flows back into the pressure chamber 13 from the fluid path.
  • the storage chamber 12 and the pressure chamber 13 filled with the pressure medium in the tubular casing 10 will form a certain vacuum degree.
  • the negative pressure generated will affect the reset of the piston assembly 40.
  • the compensation film 50 will be deformed into the storage chamber 12 under the influence of negative pressure to compensate for the lack of space caused by the rod 42 exiting the tubular casing 10 to achieve vacuum compensation.
  • the end cover 20 is provided with at least one fluid path for communicating the compensation chamber 11 and the outside of the damper, so that the compensation chamber 11 communicates with the outside, such as other fluid storage devices, or directly communicates with the atmosphere to enhance The compensation effect of the compensation film 50.
  • the damper further includes a compensation film positioning cylinder 60 adapted to the inner diameter of the tubular casing 10.
  • the opening portion 51 of the compensation film 50 has a thickened outer edge 511.
  • One end of the compensation film positioning cylinder 60 is in contact with the end cover 20, and the other end is in contact with the thickened outer edge 511 of the opening portion 51 of the compensation film 50, so that the opening portion 51 of the compensation film 50 is in contact with
  • the connection between the bearing 30 and the inner wall of the tubular casing 10 is described.
  • the compensation film positioning cylinder 60 can better position the compensation film 50 and also indirectly stabilizes the bearing 30.
  • the inner diameter of the tubular casing 10 may be provided with a reduced diameter on the other side of the bearing 30 (that is, the side of the bearing surface with respect to the closed end of the tubular casing 10) to limit the position of the bearing 30.
  • the open end of the tubular casing 10 has a radial flange portion 14 for squeezing and fixing the compensation film positioning cylinder 60, the compensation film 50, and the bearing 30.
  • the opening of the tubular casing 10 can be turned inward under the action of the mold.
  • the flange portion 14 squeezes and fixes the compensation film positioning cylinder 60, the compensation film 50, and the bearing 30.
  • An axial pressure is generated when the flange is packaged.
  • the opening 51 of the compensation film 50 is pressed, and the sealing effect is further enhanced.
  • an end of the compensation film positioning cylinder 60 abutting the end cover 20 is a ring-shaped abutment portion 61 extending in the radial direction.
  • the ring-shaped abutment portion 61 is provided with at least one for communicating with both sides thereof. Fluid path.
  • the annular abutment portion 61 of the compensation film positioning cylinder 60 can make its contact surface with the end cap 20 larger, and the force of the end cap 20 will be more uniform.
  • the annular abutment portion 61 of the compensation film positioning cylinder 60 can also limit the bottom 52 of the compensation film 50, which can make the bottom 52 and the rod 42 fit closer and have better sealing.
  • At least one of the annular abutting portions 61 is configured to communicate with fluid paths on both sides thereof, so as to ensure that the compensation chamber 11 can still communicate with the outside.
  • the annular abutment portion 61 of the compensation film positioning cylinder 60 is provided with at least one sink 611, and the sink 611 is provided with a through hole that runs through both sides of the annular abutment portion 61. Hole 612. The combination of the through hole 612 and the sinker 611 constitutes a fluid path that communicates with both sides of the annular abutment portion 61.
  • the outer diameter of the end cap 20 is smaller than the inner diameter of the tubular casing 10, and the sinker 611 provided by the annular abutment portion 61 of the compensation film positioning cylinder 60 is partially covered by the end cap.
  • 20 cover that is, the end cover 20 covers only a part of the sink 611, so that the annular abutment portion 61 of the compensation film positioning cylinder 60 provides sufficient support for the end cover 20, and at this time, the end cover 20
  • the outer edge of the outer diameter and the sink groove 611 of the compensation film positioning cylinder 60 constitute an effective fluid path for communicating with both sides of the end cap 20 to ensure that the compensation chamber 11 can communicate with the outside.
  • a portion of the end cover 20 for abutting with the annular abutting portion 61 may be flange-shaped, so as to increase an area for abutting the end cover 20 and enhance structural stability.
  • the bottom portion 52 of the compensation film 50 has an extension portion 521 along its axial direction, and the end cap 20 has an annular gap 21 that accommodates the extension portion 521.
  • the extending portion 521 of the compensation film 50 is closely attached to the rod 42.
  • the extension portion 521 of the compensation film 50 increases its contact area with the rod 42 to improve the sealing performance.
  • the annular gap 21 of the end cap 20 provides a limit space for the extension portion 521 of the compensation film 50 while helping to improve the extension portion. The degree of fit between 521 and the rod 42.
  • the annular gap 21 of the end cover 20 is deepened in the axial direction and the end cover 20 forms a convex portion 22 in the axial direction.
  • the annular gap 21 of the end cap 20 is deepened in the axial direction, so that the extension portion 521 of the compensation film 50 can enter more, which increases the area where the extension portion 521 and the rod 42 closely fit, that is, the sealing performance is further improved.
  • the protruding portion 22 formed by the end cover 20 can be extended into the spring 70 to facilitate the stability when the spring 70 abuts on the end cover 20.
  • the inner wall and the outer wall of the extension portion 521 are coaxially formed with an inner seal portion 521a and an outer seal portion 521b, respectively.
  • the inner seal portion 521a and the outer seal portion 521b may also be two or more layers, as shown in FIGS. 8 and 9, the more the number of layers, the stronger the seal; the inner seal portion 521a and the outer seal portion 521b may be one layer.
  • Figures 10 and 11 are convenient for production.
  • the inner seal portion 521 a and the outer seal portion 521 b are in interference fit with the annular gap 21 of the rod 42 and the end cover 20, respectively.
  • the inner seal portion 521a and the outer seal portion 521b of the extension portion 521 are easier to realize an interference fit between the extension portion 521 and the rod 42 and the end cover 20, so as to ensure the sealing performance.
  • a plurality of the inner sealing portion 521a and the outer sealing portion 521b may be considered, and the higher the level, the better the sealing performance.
  • the cross-sections of the inner sealing portion 521a and the outer sealing portion 521b are wedge-shaped gradually increasing in width from top to bottom or a shuttle shape gradually decreasing in width from the middle to both ends, which can make the inner sealing portion 521a
  • the contact areas of the outer seal portion 521b with the rod 42 and the end cover 20 are reduced, thereby making the inner seal portion 521a and the outer seal portion 521b have a certain deformation space, and the deformation pressing force can be minimized on the basis of ensuring the seal.
  • the cross-sections of the inner seal portion 521a and the outer seal portion 521b are shuttle-shaped, the maximum width is near the lower end. It can facilitate that the extension portion 521 of the compensation film 50 can more closely abut the outer peripheral surface of the rod 32 and the inner wall of the end cap 20 under the action of the medium in the storage chamber 12.
  • the cross-sections of the inner seal portion 521a and the outer seal portion 521b are triangular, and the bottom angles on the side of the end cover 20 are 10-17 °, and the bottoms on the side of the bearing 30 The angle is 27 to 35 °. It can ensure that the medium located in the storage chamber 12 squeezes one of the faces of the triangle and enables the inner seal portion 521a and the outer seal portion 521b to more closely abut the outer peripheral surface of the rod 42 and the inner wall of the end cap 20.
  • the bearing 30 includes a sleeve portion 31 sleeved on the rod 42 and a support portion 32 fixedly connected to the inner wall of the tubular casing 10.
  • the support portion 32 has An annular step 321 that closely contacts the opening 51 of the compensation film 50 to the inner wall of the tubular casing 10.
  • the shaft sleeve portion 31 has a certain length along the axial direction of the rod 42, so that the contact surface between the sleeve portion 31 and the rod 42 can be appropriately increased, so as to improve the stability of the rod 42 when the piston moves.
  • the sleeve portion 31 may extend toward the end cover 20 and cooperate with the annular abutment portion 61 of the compensation film positioning cylinder 60 to stabilize the extension portion 521 of the compensation film 50.
  • the outer edge of the support portion 32 is used to abut the inner wall of the tubular casing 10, and the annular step 321 is used to extend into the opening portion 51 of the compensation film 50, that is, formed between the outer edge of the annular step 321 and the inner wall of the tubular casing 10.
  • the annular groove can make the opening 51 of the compensation film 50 closely adhere to the inner wall of the tubular casing 10 and cooperate with the compensation film positioning cylinder 60 to improve the sealing performance of the opening 51 of the compensation film 50 and the inner wall of the tubular casing 10.

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

Abstract

La présente invention concerne un amortisseur comprenant : un logement tubulaire (10) ; un couvercle d'extrémité (20) ; un palier (30) disposé dans une cavité interne du logement tubulaire (10) ; un ensemble piston (40), comprenant un piston et une tige ; et un film de compensation (50), qui est un manchon cupuliforme gainé sur la tige et constitué d'un matériau déformable, une partie d'ouverture (51) du manchon cupuliforme étant raccordée à une paroi interne du logement tubulaire (10) de manière étanche, et le fond du manchon cupuliforme étant raccordé à la tige de manière étanche, la cavité intérieure du logement tubulaire (10) étant divisée successivement, d'une extrémité d'ouverture à une extrémité de fermeture, en une chambre de compensation (11), une chambre de stockage (12) et une chambre de pression (13), par le film de compensation (50) et le piston ; l'ensemble piston (40) est pourvu d'au moins un trajet de fluide pour faire communiquer la chambre de stockage (12) et la chambre de pression (13) ; et le palier (30) est pourvu d'au moins un trajet de fluide pour faire communiquer deux côtés de celui-ci. Le film de compensation de l'amortisseur fournit une compensation de pression à l'amortisseur lorsqu'il fonctionne, et est avantageux pour l'étanchéité à l'air d'un milieu de pression dans l'amortisseur.
PCT/CN2019/094642 2018-07-20 2019-07-04 Amortisseur WO2020015536A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810801641.5A CN108662067B (zh) 2018-07-20 2018-07-20 阻尼器
CN201810801641.5 2018-07-20

Publications (1)

Publication Number Publication Date
WO2020015536A1 true WO2020015536A1 (fr) 2020-01-23

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PCT/CN2019/094642 WO2020015536A1 (fr) 2018-07-20 2019-07-04 Amortisseur

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CN (1) CN108662067B (fr)
WO (1) WO2020015536A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108662067B (zh) * 2018-07-20 2024-03-08 何亮 阻尼器
CN111120455B (zh) * 2019-12-24 2024-04-30 安徽博微联控科技有限公司 一种快速插入、延时分离装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61248933A (ja) * 1985-04-25 1986-11-06 Taiho Kogyo Co Ltd シヨツクアブソ−バ
CN1481482A (zh) * 2000-12-22 2004-03-10 �����ؿ˿�������ϵͳ�������ι�˾ 液力弹簧
CN103201533A (zh) * 2010-10-19 2013-07-10 卡欧特欧自动化工程有限公司 具有带整体密封件的补偿膜的线性减震器
US9855812B2 (en) * 2008-03-19 2018-01-02 Fox Factory, Inc. Methods and apparatus for vehicle suspension having multiple gas volumes
CN108194564A (zh) * 2018-03-01 2018-06-22 湖北宏盛昌电子有限责任公司 一种密封性能好的阻尼器
CN108662067A (zh) * 2018-07-20 2018-10-16 何亮 阻尼器
CN208565393U (zh) * 2018-07-20 2019-03-01 何亮 阻尼器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592696B1 (fr) * 1986-01-09 1989-12-01 Aerospatiale Contre-fiche de rappel elastique a amortissement incorpore, de type hydro-elastique.
DE4131532A1 (de) * 1991-09-21 1993-03-25 Fichtel & Sachs Ag Verstellbares daempfventil mittels eines elektrorheologischen steuermediums fuer einen schwingungsdaempfer
US7299907B2 (en) * 2005-01-24 2007-11-27 Ace Controls, Inc. Hydraulic shock absorber and method
JP2010038171A (ja) * 2008-07-31 2010-02-18 Showa Corp 油圧緩衝器
JP5496485B2 (ja) * 2008-10-03 2014-05-21 株式会社小松製作所 液体封入マウント
DE102009059709B4 (de) * 2009-12-18 2014-10-30 Hydac Electronic Gmbh Hydraulisch gedämpftes Aggregatelager
DE102012101561A1 (de) * 2012-02-27 2013-08-29 Contitech Vibration Control Gmbh Hydrolager
DE102015015170B3 (de) * 2015-11-26 2016-12-15 Günther Zimmer Zylinder-Kolben-Einheit mit Ausgleichsdichtelement
CN106884922B (zh) * 2015-12-15 2019-11-22 上海瑞纽机械股份有限公司 一种具有油腔自动补偿的液压阻尼器
CN206017534U (zh) * 2016-08-05 2017-03-15 武汉艾尔格桥梁新技术开发有限公司 内置活塞式容积补偿装置的黏滞阻尼器
CN206943311U (zh) * 2017-07-18 2018-01-30 湖北宏盛昌电子有限责任公司 一种阻尼器
CN107906161A (zh) * 2017-12-12 2018-04-13 西安科飞机电科技有限公司 缓冲器
CN108119595A (zh) * 2018-02-11 2018-06-05 宁波麦维科技有限公司 往复式电流变阻尼器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61248933A (ja) * 1985-04-25 1986-11-06 Taiho Kogyo Co Ltd シヨツクアブソ−バ
CN1481482A (zh) * 2000-12-22 2004-03-10 �����ؿ˿�������ϵͳ�������ι�˾ 液力弹簧
US9855812B2 (en) * 2008-03-19 2018-01-02 Fox Factory, Inc. Methods and apparatus for vehicle suspension having multiple gas volumes
CN103201533A (zh) * 2010-10-19 2013-07-10 卡欧特欧自动化工程有限公司 具有带整体密封件的补偿膜的线性减震器
CN108194564A (zh) * 2018-03-01 2018-06-22 湖北宏盛昌电子有限责任公司 一种密封性能好的阻尼器
CN108662067A (zh) * 2018-07-20 2018-10-16 何亮 阻尼器
CN208565393U (zh) * 2018-07-20 2019-03-01 何亮 阻尼器

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CN108662067B (zh) 2024-03-08

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