CN106233025A - Dual-tube shock absorber - Google Patents
Dual-tube shock absorber Download PDFInfo
- Publication number
- CN106233025A CN106233025A CN201580007625.3A CN201580007625A CN106233025A CN 106233025 A CN106233025 A CN 106233025A CN 201580007625 A CN201580007625 A CN 201580007625A CN 106233025 A CN106233025 A CN 106233025A
- Authority
- CN
- China
- Prior art keywords
- dual
- shock absorber
- container
- tube shock
- piston rod
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 25
- 230000035939 shock Effects 0.000 title claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002788 crimping Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
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
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/062—Bi-tubular units
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of dual-tube shock absorber (1), including cylinder (3), this cylinder is limited by piston rod guide (5) in side, wherein, outside container (15) accommodates described cylinder (3) and closes dual-tube shock absorber (1) by described piston rod guide (5) and single bottom (17), wherein, the open edge (21) of container (15) is rolled in the region of piston rod guide (5) and is close on the covering side of piston rod guide (5), the most described piston rod guide (5), one clamp chain is formed on the bottom (17) of described cylinder (3) and described container (15), wherein, described single bottom (17) is maintained by least one supporting surface (23) being radially directed inside of described container (15).
Description
Technical field
The present invention relates to a kind of according to claim 1 dual-tube shock absorber as described in the preamble.
Background technology
Dual-tube shock absorber commonly known per se has an inner casing, and its side is limited by piston rod guide and bottom valve.
External container accommodating cylinder also passes through piston rod guide and bottom lock amortisseur.The bottom of piston rod guide, cylinder and container
Form a clamp chain at this, method is that the edge of container open is rolled in the region of piston rod guide and is close to piston
On the covering side of bar.
When producing in enormous quantities, bottom is generally welded with external container.This version is such as at DE 2516
656 A1 have been described.Although this manufacture method is extensively applied, but the most also bring shortcoming.Welding such as automatization sets
Standby for vessel fabrication costly and be only applicable to large batch of production.Further, it is necessary to use for bottom and container
For can be with the material of good welds.The particularly anticorrosion in welding region also must be taken seriously.
WO 2005/030506 A1 discloses a kind of dual-tube shock absorber, and its container is same and piston rod guide is rolled up one
Rise.Additionally, in the embodiment of Figure 16 to Figure 18, bottom is not welding, and is made by a lock ring and fixes.For this outside appearance
Device has a groove in inner side cincture.Residue cross section in the region of the groove of cincture thus defines dual-tube shock absorber
Intensity.
Summary of the invention
It is an object of the invention to, it is achieved a kind of dual-tube shock absorber, eliminate in prior art in this dual-tube shock absorber
Known shortcoming.
According to the present invention, this purpose is achieved in the following manner, and i.e. single bottom is referred to by least one of container
Keep to the supporting surface of inner radial.
Compared with the prior art introduced one is big, and advantage is, can save lock ring.The most also including eliminating
Groove in wall, it increases the feature of cost as load limit with because of cutting.
Can also be that different cylinder barrel length uses volumetric standard tube length degree, thus again reduce logistics spending.At lock
The most all the time needing in the case of stop ring to check correct cooperation, this point there is no need in the present invention.
So container can have at least one concave bar shaped towards inner radial, and this concave bar forms supporting surface.This type
Concave bar can also utilize fairly simple machining.
For the good connection bottom realizing and between container cartridge, bottom has guide pin bushing, and this guide pin bushing has cincture in side
Convex shoulder, this convex shoulder is close on the support surface.Guide pin bushing stops the lateral attitude of bottom effectively, and the convex shoulder of cincture provides and needs
Time the set-up mode at a right angle with container inner wall, thus bottom support face connects and can absorb the biggest power.
In one embodiment, bottom has guide pin bushing, and wherein, the transition region from bottom to guide pin bushing has less than base wall
Thick radius of curvature.The purpose of this measure is, reaches connection good between bottom and container support face.Knuckle radius is more
Little, effective contact surface is the biggest and bottom shape is the most stable.
As proposing H.D measure, could dictate that, knuckle radius has the impressing portion forming corner.The first step manufactures the end
Portion, imprints the most afterwards.
In the design that another is favourable, bottom radially has tapered zone at the cross-sectional interior limited by guide pin bushing,
For supporting bottom valve.Thus bottom valve can easily with Gang Dui center, and bottom is itself by this moulding
Reinforced.
In view of simple deforming moulds, the convex shoulder of cincture transition part between guide pin bushing and tapered zone shapes.That is, in
It is can to use simple diel and such as need not implement radial slot in guide pin bushing.
In a kind of selectivity flexible program, container is together with the crimping of bottom.Exist the biggest in the case of crimping
Supporting surface, and make the minimizing risk of formation crackle.
In view of manufacturing bottom as simply as possible, convex shoulder and the flanging part of external container on bottom are formed and are used for holding
The groove of device cylinder sealing member.Therefore, bottom does not exist side pocket.
Accompanying drawing explanation
Illustrate that the present invention is described in detail by accompanying drawing below.
Wherein:
Fig. 1 illustrates the dual-tube shock absorber having at least one concave bar as the supporting surface for bottom；
Fig. 2 illustrates the dual-tube shock absorber on bottom with tourelle；
Fig. 3 illustrates the dual-tube shock absorber on bottom with embossing.
Detailed description of the invention
Fig. 1 illustrates a part for dual-tube shock absorber 1, and it has cylinder 3, this cylinder in side by piston rod guide 5 and bottom
Valve 7 limits.Within piston rod 9 is axially displaceably arranged on cylinder 3, wherein, the view of piston is eliminated.Cylinder 3 is completely with subtracting
Shake Filled Dielectrics, and seal by piston rod seal component 11, this piston rod seal component passes through protection plate within piston rod guide 5
13 fix.
External container 15 accommodating cylinder 3 also closes amortisseurs by piston rod guide 5 and single bottom 17.External container
15 and cylinder 3 form a balance cylinder 19 filled at least partially by impact-absorbing medium, for the impact-absorbing medium that is expelled from by piston rod
Volume.
The open edge 21 of container 15 is rolled and is close to piston rod guide in the region of piston rod guide 5 or protects
On the covering side of dish 13, thus the bottom 17 of piston rod guide 5, cylinder 3, bottom valve 7 and container 15 is at least indirectly formation
One clamp chain.
Individually bottom 17 is maintained by least one supporting surface 23 being radially directed inside of container 15.Supporting surface 23 with
Container 15 is embodied as one, thus without the parts of any other formation supporting surface 23.
In FIG, at least one concave bar 25 shaped towards inner radial forms supporting surface.Can arrange and multiple be arranged in one
The concave bar of the stagewise on individual reference circle or the concave bar of a cincture.
Bottom 17 has guide pin bushing 27, and this guide pin bushing has the convex shoulder 29 of cincture in side, and this convex shoulder is close on supporting surface 23.
The groove 31 of a cincture it is implemented with, for container cartridge sealing member 33 in this external guide pin bushing.
Additionally, bottom 17 radially has tapered zone 35 within the cross section limited by guide pin bushing, it is used for supporting bottom valve
Door 7.Bottom 17 is embodied as common sheet material bool, thus the profile in conical region both also exists in outside in inner side.The end
Portion's valve 7 has tapered zone 37 on the direction towards bottom 17, thus by two tapered zones 35；Bottom the combination of 37 exists
Valve 7 orienting to neutralizing relative to cylinder 3.
Shape at the convex shoulder 29 of cincture preferably transition part between guide pin bushing 27 and tapered zone 35.Utilizing simply can be axial
The stamping die of feeding can manufacture convex shoulder 29.
During assembling, upper bottom portion valve 7 equipped by cylinder 3.Subsequently by piston rod 9 together with one piece of piston feeding, and set is plugged and is included
Piston rod seal component 11 is in interior piston rod guide 5.External container 15 is elapsed in piston rod guide 5, and along axle
It is directed to cylinder 3.Hereafter bottom 17 is moved on in container, until it is close on bottom valve 7.Hereafter by the side of container 15
Edge 21 is rolled onto in piston rod guide 5, and produces at least one supporting surface 23 by pressed concave-rib.Then fill to amortisseur and subtract
Shake medium.
Certainly, assembling can also manufacture at least one supporting surface 23 on container 15 and start, and is sent into bottom 17, then will
Other parts load in the container 15 that side is opened wide.Last manufacture flanging part 39 in the region of piston rod guide 5.
The bindiny mechanism that wheel storing apparatus 41 is used as on container in this view, such as in DE 37 35 043 A1
As disclosed.
Fig. 2 illustrates a kind of flexible program of the structural principle according to Fig. 1.Here, all parts shown in use Fig. 1.
Except for the difference that container 15 is together with the crimping of bottom 17.
Convex shoulder 29 (this convex shoulder is on the supporting surface of container in FIG) on bottom 17 is now and the volume of external container 15
Edge 43 forms the groove 31 for container cartridge sealing member 33.This flexible program can particularly simple manufacture, because cylinder length
On tolerance variations can be readily available compensation because the edge of cylinder 3 is rolled onto bottom 17 on.Contingent inaccuracy
Property is compensated by crimping process.
Illustrate the container 15 with concave bar 25 according to the flexible program of Fig. 3, bottom 17 is supported on this concave bar.With according to figure
Unlike the embodiment of 1, bottom 17 to guide pin bushing 27 has the transition region 45 of a band radius of curvature, and this radius of curvature is less than
The wall thickness of bottom 17.Transition region 45 preferably has the impressing portion forming corner.Thus produce the transition that a seamed edge is the most sharp-pointed
District 45.The tapered zone 35 of bottom 17 advantageously produces impact to the contact of supporting surface 23, because tapered zone 35 and supporting surface have
Connect subparallel orientation.Container cartridge sealing member 33 is arranged on the end that guide pin bushing 27 is contrary with supporting surface 23.Therefore container cartridge is close
Impact-absorbing medium can not also be there is between sealing 33 and supporting surface 23, thus the contact surface of guide pin bushing 27 and container 15 wall is in this region
Inside meet sealing effectiveness.
Reference:
1 dual-tube shock absorber
3 cylinders
5 piston rod guide
7 bottom valves
9 piston rods
11 piston rod seal components
13 protection plates
15 containers
Bottom 17
19 balance cylinders
21 edges
23 supporting surfaces
25 concave bars
27 guide pin bushings
29 convex shoulders
31 grooves
33 container cartridge sealing members
35 tapered zones
37 tapered zones
39 flanging parts
41 wheel storing apparatus
43 flanging parts
45 transition regions
Claims (9)
1. dual-tube shock absorber (1), including cylinder (3), this cylinder is limited by piston rod guide (5) in side, wherein, outside container
(15) accommodate described cylinder (3) and close described dual-tube shock absorber by described piston rod guide (5) and single bottom (17)
(1), wherein, the open edge (21) of described container (15) is rolled in the region of described piston rod guide (5) and is close to
On the covering side of described piston rod guide (5), the most described piston rod guide (5), described cylinder (3) and described container (15)
Bottom (17) formed a clamp chain, it is characterised in that described single bottom (17) is by least the one of described container (15)
The individual supporting surface (23) being radially directed inside maintains.
Dual-tube shock absorber the most according to claim 1, it is characterised in that described container (15) has at least one towards radially
The internal concave bar (25) shaped, this concave bar forms described supporting surface (23).
Dual-tube shock absorber the most according to claim 1 and 2, it is characterised in that described bottom (17) have guide pin bushing (27), should
Guide pin bushing has the convex shoulder (29) of cincture in side, and this convex shoulder is close on described supporting surface (23).
Dual-tube shock absorber the most according to claim 1 and 2, it is characterised in that described bottom (17) have guide pin bushing (27), its
In, from described bottom (17), the transition region to described guide pin bushing (27) has the radius of curvature less than described bottom (17) wall thickness.
Dual-tube shock absorber the most according to claim 4, it is characterised in that knuckle radius has the impressing portion forming corner.
6. according to the dual-tube shock absorber described in claim 3 or 4, it is characterised in that described bottom (17) are radially by described
There is within the cross section that guide pin bushing (27) limits tapered zone (35), be used for supporting bottom valve (7).
Dual-tube shock absorber the most according to claim 6, it is characterised in that the convex shoulder (29) of described cincture be formed in described in lead
At transition part between set (27) and described tapered zone (35).
8. according to the dual-tube shock absorber according to any one of claim 1 or claim 3 to 7, it is characterised in that described container
(15) together with described bottom (17) crimping.
9. according to the dual-tube shock absorber described in claim 3 and 8, it is characterised in that convex shoulder (29) on described bottom (17) and
The flanging part (43) of outside container (15) forms the groove (31) for container cartridge sealing member (33).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014202201.0A DE102014202201A1 (en) | 2014-02-06 | 2014-02-06 | Two pipe vibration |
| PCT/EP2015/050205 WO2015117782A1 (en) | 2014-02-06 | 2015-01-08 | Twin-tube vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106233025A true CN106233025A (en) | 2016-12-14 |
Family
ID=52302237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580007625.3A Pending CN106233025A (en) | 2014-02-06 | 2015-01-08 | Dual-tube shock absorber |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106233025A (en) |
| DE (1) | DE102014202201A1 (en) |
| WO (1) | WO2015117782A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296176A (en) * | 2018-03-22 | 2019-10-01 | Zf腓特烈斯哈芬股份公司 | Has the cylinder assembly of Packed bottom |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958673A (en) * | 1972-11-09 | 1976-05-25 | Allinquant F M | Hydraulic shock absorber and base partition structure |
| DE8813851U1 (en) * | 1988-11-05 | 1989-01-05 | Fichtel & Sachs Ag, 8720 Schweinfurt | Container of a vibration damper |
| US5441132A (en) * | 1992-09-10 | 1995-08-15 | Fichtel & Sachs Ag | Double tube vibration damper unit |
| DE4430491A1 (en) * | 1994-08-27 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper, especially spring leg |
| JPH1047408A (en) * | 1996-08-08 | 1998-02-20 | Unisia Jecs Corp | Hydraulic shock absorber |
| DE10202315A1 (en) * | 2001-02-05 | 2002-10-02 | Stabilus Gmbh | Blockable piston-cylinder unit valve housing has groove in form of spherical depression into which inner tube seal is injected |
| JP2003287073A (en) * | 2002-03-27 | 2003-10-10 | Tokico Ltd | Hydraulic shock absorber |
| WO2005030506A2 (en) * | 2003-09-25 | 2005-04-07 | Tenneco Automotive Operating Company Inc. | Improved thermal expansion compensation shock absorber |
| DE102005055558A1 (en) * | 2005-11-18 | 2007-05-31 | Hahn, Ulrich | Adjustable oil damper |
| EP1956262A1 (en) * | 2007-02-06 | 2008-08-13 | ThyssenKrupp Bilstein Suspension GmbH | Lock packet for an oscillation attenuator and oscillation attenuator with such a lock packet |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2516656C3 (en) | 1975-04-16 | 1981-04-09 | Boge Gmbh, 5208 Eitorf | Method for the tight connection of two components to one another by resistance welding, in particular for the production of a tubular housing of a telescopic vibration damper, primarily for motor vehicles |
| DE3735043C2 (en) | 1987-10-16 | 1996-04-04 | Fichtel & Sachs Ag | Suspension strut for motor vehicles, with a bracket for connecting the suspension strut to the wheel mounting devices |
| DE19628152C2 (en) * | 1996-07-12 | 2001-07-19 | Krupp Bilstein Gmbh | Hydraulic vibration damper |
-
2014
- 2014-02-06 DE DE102014202201.0A patent/DE102014202201A1/en not_active Withdrawn
-
2015
- 2015-01-08 WO PCT/EP2015/050205 patent/WO2015117782A1/en active Application Filing
- 2015-01-08 CN CN201580007625.3A patent/CN106233025A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958673A (en) * | 1972-11-09 | 1976-05-25 | Allinquant F M | Hydraulic shock absorber and base partition structure |
| DE8813851U1 (en) * | 1988-11-05 | 1989-01-05 | Fichtel & Sachs Ag, 8720 Schweinfurt | Container of a vibration damper |
| US5441132A (en) * | 1992-09-10 | 1995-08-15 | Fichtel & Sachs Ag | Double tube vibration damper unit |
| DE4430491A1 (en) * | 1994-08-27 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper, especially spring leg |
| JPH1047408A (en) * | 1996-08-08 | 1998-02-20 | Unisia Jecs Corp | Hydraulic shock absorber |
| DE10202315A1 (en) * | 2001-02-05 | 2002-10-02 | Stabilus Gmbh | Blockable piston-cylinder unit valve housing has groove in form of spherical depression into which inner tube seal is injected |
| JP2003287073A (en) * | 2002-03-27 | 2003-10-10 | Tokico Ltd | Hydraulic shock absorber |
| WO2005030506A2 (en) * | 2003-09-25 | 2005-04-07 | Tenneco Automotive Operating Company Inc. | Improved thermal expansion compensation shock absorber |
| CN1860312A (en) * | 2003-09-25 | 2006-11-08 | 坦尼科汽车操作有限公司 | Thermal expansion compensation shock absorber |
| DE102005055558A1 (en) * | 2005-11-18 | 2007-05-31 | Hahn, Ulrich | Adjustable oil damper |
| EP1956262A1 (en) * | 2007-02-06 | 2008-08-13 | ThyssenKrupp Bilstein Suspension GmbH | Lock packet for an oscillation attenuator and oscillation attenuator with such a lock packet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296176A (en) * | 2018-03-22 | 2019-10-01 | Zf腓特烈斯哈芬股份公司 | Has the cylinder assembly of Packed bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015117782A1 (en) | 2015-08-13 |
| DE102014202201A1 (en) | 2015-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161214 |
|
| WD01 | Invention patent application deemed withdrawn after publication |