WO2016146335A1 - Dispositif de soupape d'amortissement compact - Google Patents

Dispositif de soupape d'amortissement compact Download PDF

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Publication number
WO2016146335A1
WO2016146335A1 PCT/EP2016/053492 EP2016053492W WO2016146335A1 WO 2016146335 A1 WO2016146335 A1 WO 2016146335A1 EP 2016053492 W EP2016053492 W EP 2016053492W WO 2016146335 A1 WO2016146335 A1 WO 2016146335A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
dämpfventileinrichtung
housing
actuator
Prior art date
Application number
PCT/EP2016/053492
Other languages
German (de)
English (en)
Inventor
Stefan Schmitt
Thomas Manger
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2016146335A1 publication Critical patent/WO2016146335A1/fr

Links

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
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically

Definitions

  • the invention relates to a short-building Dämpfventil raised according to the preamble of claim 1.
  • an adjustable vibration damper is known, the u. a. is advertised for motorcycles. In a motorcycle, the allowable length of the vibration damper is even more difficult to achieve compared to a PKw. It has been found that for this particular application, an adjustable damper valve device is suitable, which has a conventional piston valve and a parallel bypass opening, as shown in FIG. 13 of the US
  • a coil is arranged, which exerts an axial displacement force on an armature.
  • a sliding sleeve is fastened to the armature, which forms a slide valve with a valve sleeve fixed in the actuator housing.
  • a return spring is arranged, which biases the sliding sleeve in a defined starting position.
  • a cover of the actuator housing has a carrier pin on which the piston valve is fixed by means of a piston nut.
  • the piston nut is screwed onto an external thread of the carrier journal.
  • the bypass channel in the carrier pin is formed by a simple axial bore.
  • DE 10 2012 210 462 A1 relates to an adjustable damping valve device which can be used in passenger car or commercial vehicle vibration dampers.
  • a damper valve device has a precursor valve which controls a main stage valve.
  • the main stage valve is often preceded by an inlet valve in series.
  • This damper valve device is optimized especially for the Dämpfventil characterizing. A simple transmission of this Dämpfventil adopted for an application that requires a small length is not possible.
  • the return spring arrangement is disposed within an actuator housing.
  • the object of the present invention is to realize a Dämpfventil driving, wherein the Dämpfventil driving is arranged on a piston rod and can be used in a vibration damper with a small overall length.
  • the return spring is arranged in the carrier pin.
  • valve body is slidably mounted in the carrier pin.
  • a bushing for the valve body is fixed in the support pin.
  • the liner has a correspondingly high-quality running surface for the valve body, so that the support pin z. B. can be manufactured as a sintered or as a forged component with a low reworking effort.
  • a support element for the return spring is made adjustable.
  • the liner has an axial stop for determining an end position of the valve body on. If the support member are mounted together with the return spring in the carrier pin, then prevents the axial stop falling apart of these components. You can easily tilt this unit, rotate or move in any other way, without any of the internal components from the carrier pin falls.
  • the damping valve is particularly easy to install in separate assemblies, since the valve body and an armature of the actuator are connected to each other via a plug connection.
  • valve body on an adapter, which receives the connector with the anchor.
  • the adapter can be made much easier in terms of manufacturing tolerances and material than the valve body.
  • the adapter is axially fixedly connected to the valve body. This design offers the advantage, in particular in the case of modular production with assemblies, that no individual components are lost in the production process.
  • the damping valve comprises an annular valve body which is fixed on the carrier pin by means of a hollow fastening means which engages in the bypass channel.
  • Another measure for forming an assembly for the variable valve is that the support pin and the bottom of the housing made in one piece. The connection region of the carrier journal with the housing is thereby moved from the somewhat more sensitive area with the liner into the ground.
  • FIGURE shows a detail of a vibration damper 1 of any type in the region of a Dämpfventil Anlagen 3, which is fixed to an axially movable piston rod 5.
  • the Dämpfventil shark 3 has a damping valve 7 in the design of a piston valve, wherein an annular valve body 9 of the damping valve filled with a damping medium cylinder 1 1 in a piston rod side and a piston rod remote working space 13; 15 divided.
  • the damping valve device 3 comprises a cup-shaped housing 17, in which an actuator 19 is arranged.
  • the actuator 19 includes u. a. a coil 21 which exerts an axial displacement force on an armature 23.
  • the coil 21 generates an adjustment during an energizing movement in the extension direction of the armature 23 out of the housing 17.
  • the radial mounting of the armature 23 is in a return body 25 and in a pole disk 27 respectively via bearing sleeves 29; 31 realized.
  • a bottom 33 which closes the housing 17 in the direction of the damping valve 7, is to be considered independently of the actuator 19.
  • the actuator 19 is sealed in the direction of the coil 21 and a cable connection 35.
  • the bottom 33 of the housing 17 and a support pin 37 are made in one piece and thus provide the connection to the damping valve 7, which may be any known from the prior art design, of which only one embodiment is shown here by way of example.
  • the damping valve 7 which may be any known from the prior art design, of which only one embodiment is shown here by way of example.
  • the damping valve 7 may be any known from the prior art design, of which only one embodiment is shown here by way of example.
  • throttle channels 39 and the associated valve disks 41 for a flow connection between the piston rod remote working space 15 and the piston rod side working space 13 can be seen.
  • the valve discs 43 are shown for the opposite flow direction.
  • a bypass channel 45 is performed to the damping valve 7.
  • the bypass channel 45 is driven by an adjustable valve 47 which is arranged in the carrier pin 37.
  • the adjustable valve 47 is a slide valve with a valve body 49 in the form of a valve sleeve, which slides in a bushing 51, which in turn is fixed in the support pin 37.
  • the liner 51 has at least one radial valve opening 53, which with a Control edge 55 of the valve sleeve 49 defines a variable throttle cross-section.
  • the bush 51 is fxiert in the support pin 37 and has on the outside a peripheral collar 57 on.
  • the circumferential collar 57 and a step in the support pin 37 define an annular space 59 between the at least one radial valve opening 53 in the bushing 51 and a plurality of radial channels 61 in the support pin 37.
  • About the annular space 59 is in Circumferential direction any installation position of the bushing 51 possible.
  • the valve body 49 is biased by a return spring 63 against the force of the actuator 19 in a defined starting position.
  • the return spring 63 is arranged in the carrier pin 37 and is adjustable via an annular support member 65 with respect to the bias.
  • the support element 65 has a tool surface 69 on the side facing away from a support surface 67 for the restoring spring 63.
  • An axial stop 71 on the inner diameter of the liner 51 determines an end position of the valve body 49, z. B. in currentless coil 21 of the actuator 19th
  • the connection between the valve body 49 and the armature 23 of the actuator 19 is designed as a simple plug connection.
  • an adapter 73 is arranged, which receives the plug connection with the armature 23.
  • the connector is to be understood as a floating bearing, which is designed for the transmission of axial compressive forces.
  • an end face 75 of the armature 23 is in contact with a flange 77 of the mushroom-shaped adapter 73.
  • a radial gap provides for a Ausachs réellesaus Morgan between the adjustable valve 47 and the armature 23.
  • In the flange 77 at least one axial passage 79 is provided, which allows the damping medium volume in the bypass passage 45 pass.
  • the piston valve or the damping valve 7 with its valve disks 41; 43 and the annular valve body 39 is fixed by a fastening means 81 which engages in the bypass channel 45.
  • the fastening means 81 is designed as a hollow screw and uses a threaded portion 83, which is also for the support member 65th is provided.
  • the inner diameter of the hollow screw 81 is greater than the inner diameter of the support element 65, so that the tool surface 69 is accessible even when the piston valve 7 is mounted.
  • a housing 17 connected to the hollow piston rod 5 is equipped with the actuator 19 in a separate construction section.
  • An inner and an outer seal 89; 87 on an insulator disc 89 protect the coil 21 and not shown cable connections against moisture.
  • the bushing 51 is inserted into the carrier pin 37.
  • a small shoulder 91 in the carrier pin defines the final assembly position of the liner 51.
  • the valve body 49 is inserted with the attached adapter 73 in the bushing 51.
  • the assembly of the return spring 63 and the screwing of the support member 65 follows. Via a test means now a displacement force can be exerted on the valve body 49 to make a pre-adjustment of the return spring force.
  • the end module can now be checked on a test bench with regard to the damping force behavior. If necessary, z. B. the bias of the return spring 63rd be corrected by introducing a tool through the hollow fastener 81 to the tool surface 69 of the support member 65.
  • the valve body 49 is moved by the return spring 63 in a maximum throttle position.
  • the throttle position may mean the complete closure or a small throttle cross-section. Then, the comparatively large damping force is generated substantially by the damping valve 7.
  • Deviations can z. B. by a different selection of the valve disks 41; 43 occur.
  • Valve body 65 support element

Landscapes

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

Abstract

L'invention concerne un dispositif de soupape d'amortissement (3) comportant un boîtier (17) dans lequel un actionneur (19) effectue un mouvement de réglage sur un corps de soupape (49) et un ressort de rappel (63) s'oppose au mouvement de réglage. Le corps de soupape commande dans une tige de support (37) un conduit de dérivation (45) menant à une soupape d'amortissement (7) et est relié au fond (33) du boîtier. Le ressort de rappel est disposé dans la tige de support.
PCT/EP2016/053492 2015-03-19 2016-02-19 Dispositif de soupape d'amortissement compact WO2016146335A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015204993.0A DE102015204993B4 (de) 2015-03-19 2015-03-19 Kurzbauende Dämpfventileinrichtung
DE102015204993.0 2015-03-19

Publications (1)

Publication Number Publication Date
WO2016146335A1 true WO2016146335A1 (fr) 2016-09-22

Family

ID=55398302

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/053492 WO2016146335A1 (fr) 2015-03-19 2016-02-19 Dispositif de soupape d'amortissement compact

Country Status (2)

Country Link
DE (1) DE102015204993B4 (fr)
WO (1) WO2016146335A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180320A (en) * 1985-09-11 1987-03-25 Fichtel & Sachs Ag Vibration damper with variable damping force
DE60107344T2 (de) * 2000-09-19 2005-05-12 Kayaba Industry Co., Ltd. Hydraulischer Dämpfer
EP2792902A1 (fr) * 2013-04-16 2014-10-22 Öhlins Racing Ab Agencement de soupape

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446133A1 (de) 1984-12-18 1986-06-19 Fichtel & Sachs Ag, 8720 Schweinfurt Schwingungsdaempfer mit veraenderbarer daempfkraft
JP3041870B2 (ja) 1990-02-16 2000-05-15 トヨタ自動車株式会社 ショックアブソーバ制御装置
DE4406918C2 (de) 1993-03-18 1995-11-02 Fichtel & Sachs Ag Dämpfventileinrichtung
JP2001159444A (ja) 1999-11-30 2001-06-12 Tokico Ltd 減衰力調整式油圧緩衝器
NL2005740C2 (en) 2010-11-22 2012-05-23 Tractive Suspension B V Continuously variable damper device.
DE102012210462A1 (de) 2011-07-14 2013-01-17 Zf Friedrichshafen Ag Verstellbare Dämpfventileinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180320A (en) * 1985-09-11 1987-03-25 Fichtel & Sachs Ag Vibration damper with variable damping force
DE60107344T2 (de) * 2000-09-19 2005-05-12 Kayaba Industry Co., Ltd. Hydraulischer Dämpfer
EP2792902A1 (fr) * 2013-04-16 2014-10-22 Öhlins Racing Ab Agencement de soupape

Also Published As

Publication number Publication date
DE102015204993A1 (de) 2016-09-22
DE102015204993B4 (de) 2021-11-18

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