CN103994122B - Piston-cylinder unit and the method being used for manufacturing piston-cylinder unit - Google Patents
Piston-cylinder unit and the method being used for manufacturing piston-cylinder unit Download PDFInfo
- Publication number
- CN103994122B CN103994122B CN201410051885.8A CN201410051885A CN103994122B CN 103994122 B CN103994122 B CN 103994122B CN 201410051885 A CN201410051885 A CN 201410051885A CN 103994122 B CN103994122 B CN 103994122B
- Authority
- CN
- China
- Prior art keywords
- piston
- manometer tube
- sealing member
- protection set
- cylinder unit
- 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.)
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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
- F16F9/38—Covers for protection or appearance
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
Abstract
nullThe present invention relates to a kind of piston cylinder units，There is cylindrical pressure pipe (1) and piston (7)，Manometer tube has surface protection body outside it，Piston can move axially in manometer tube (1) and have piston rod (8)，Wherein piston rod (8) is derived through end-face hole (13) hermetically at end face (5) place of manometer tube (1) from manometer tube (1)，Wherein manometer tube (1)、Start from the end regions (6) of end face (5) of piston rod side not in the range of surface protection body，And the end regions (6) in the range of surface protection body is not covered by anticorrosive (16) and lid protection set (15) of besieged end regions (6) hides，This protection be enclosed within its relative to have on the inner end region of the end face (5) of the piston rod side of manometer tube (1) radially around sealing member (17).Sealing member (17) is to tightly abut against that the cylindrical surface (4) of manometer tube (1) is upper, flexible sealing member (17), and protects set (15) side overlying to be within it stamped thickness to reach the flow-like on surface (4) or the anticorrosive (16) of paste of manometer tube (1).
Description
Technical field
The present invention relates to a kind of piston-cylinder unit, its manometer tube with cylinder and piston, should
Manometer tube has surface protection body outside it, and this piston can move axially in manometer tube and have
Having piston rod, wherein in the end of manometer tube, piston rod is led from manometer tube hermetically through end-face hole
Going out, wherein manometer tube, the end face that starts from piston rod side end regions is not at the model of surface protection body
In enclosing, and should be covered by anticorrosive and wrapped by the end regions in the range of surface protection body
The lid protection enclosing end regions hides, and this protection is enclosed within its end relative to the piston rod side of manometer tube
Have on the inner end region in face radially around sealing member.
Background technology
For this piston-cylinder unit it is known that manometer tube, not at surface protection body
In the range of end regions on be coated with liquid preservative erosion oil, and then by relative to manometer tube
Overall diameter is shifted onto on this end regions less than the protection set of its interior diameter.Here, by elastomeric material structure
The protection set become radially expands.Owing to protection set utilizes axial pressure inwardly to surround manometer tube,
Therefore, when being shifted onto on manometer tube by protection set, the rust preventive oil being coated on manometer tube is at least the biggest
Degree Shangdi is released from protection set.The most at least most of anticorrosion being coated in advance on manometer tube
Erosion oil is treated infiltration and to be protected, not in the range of surface protection body from manometer tube actual again
Remove on end regions.
Additionally, the rust preventive oil released from protection set pollutes the manometer tube table being furnished with surface protection body
Face.
Summary of the invention
Therefore it is an object of the invention to, propose a kind of piston-cylinder unit and one is used for manufacturing
The method with the piston-cylinder unit of high anticorrosion safety, this corrosion be positioned at manometer tube, no
On end regions in the range of surface protection body.
According to the present invention, this purpose is thus come for starting the piston-cylinder unit of described type
Realize, i.e. this sealing member is that tightly abut against on the cylindrical surface of manometer tube, flexible close
Sealing, and protect and be enclosed within its medial surface and be coated with the flow-like that thickness is the surface reaching manometer tube
Or the anticorrosive of paste.
Constructed by this, have been incorporated into that protection is overlapped and be preferably affixed to protect the anti-of jacket inner wall
Caustic only along with push to protection set be just able to manometer tube, not in the range of surface protection body
End regions contact, and be entirely localized at protection set inside.The consumption of anticorrosive should be big
Annular gap between stuffing pressure Guan Yubao jacket inner wall the most to a great extent, and therefore
Infiltration manometer tube, not end regions in the range of surface protection body.
Thus can also avoid the space between protection set and manometer tube, this space is such as by different paints
Thickness or different temperature characterisitics and produce, and moisture content thus can to penetrate into protection set following and permissible
It is attached on coating-free area territory.
Both, i.e. the loss of anticorrosive and the infiltration of moisture content all may cause protection set below
Too early corrosion.
Sealing member also avoids region that anticorrosive escapes to manometer tube surface, that be furnished with surface protection body
On, thus avoid polluting this region.
Pliable and tough sealing member can be can plastic deformation.If this pliable and tough sealing member can elastic become
Shape, then when having relative motion between manometer tube and protection set, this sealing member the most all the time can be with pressure
Pipe matches and is maintained in a device on manometer tube.Can be by elastomer or thermoplastic at this sealing member
Material is constituted.
In simple structure, flexible sealing member can by one or more radially around sealing
Lip is constituted.
In order to protect the end face of manometer tube to be independent of outside influences, the protection of lid is enclosed within it relative to becoming
Can have bottom on the end of the sealing member of shape, have coaxial through hole bottom this, piston rod can be worn
Cross this through hole to stretch out movably.In order to guide piston rod to pass hermetically, the inwall of through hole can be tight
Ground surrounds piston rod, to this end, the most preferably arrange radially around flexible the
Two sealing members.
In order to enable to manufacture simply and at low cost, protection set and/or the first sealing member and/or second close
Sealing can be made up of plastics, and wherein protection set can be by elastomeric material or by the most to a great extent
The material of rigidity is constituted.
Can integrally overlap and the first sealing member and the second sealing member by design protection at this.
Surface protection body can be powder coating or layer of paint or electrophoretic paint layer.
In the method manufacturing piston-cylinder unit, this piston-cylinder unit has cylindrical pressure pipe
And piston, this manometer tube has surface protection body outside it, and this piston can be at pressure inner axial tube
Moving and have piston rod, wherein in the end of manometer tube, piston rod is through end-face hole hermetically
Deriving from manometer tube, wherein manometer tube, the end face that starts from piston rod side end regions is not or not surface
In the range of protective, and this not end regions in the range of surface protection body by anticorrosive
Covering and the lid protection set of besieged end regions hides, this protection is enclosed within it relative to manometer tube
Piston rod side end face inner end region on have radially around sealing member, according to the present invention should
Purpose thus realizes, i.e. protection is enclosed within the anticorrosion being coated with flow-like or paste on its medial surface
Agent, and then protection set is shifted onto manometer tube, not end region in the range of surface protection body
On territory.
It is achieved that the advantage identical with piston-cylinder unit noted earlier.
It is real that the anticorrosive of coating fluid shape or paste preferably adheres to ground on the medial surface of protection set
Existing, in order to be then able to dispose and/or transport this assembling pre-prepd protection set completely.
The anticorrosive of coating fluid shape or paste can be by by the pin immersed in protection set certainly
Introduce dynamicly and realize.
Accompanying drawing explanation
One enforcement example of the present invention shown in the drawings, and the following detailed description of this enforcement
Example.Accompanying drawing illustrates
Fig. 1 is the piston-cylinder unit in longitudinal section,
Fig. 2 is the enlarged drawing that the protection of the piston-cylinder unit according to Fig. 1 is enclosed within longitudinal section.
Detailed description of the invention
The piston-cylinder unit that figure 1 illustrates has cylindrical pressure pipe 1, and this manometer tube is at it
Two ends are to close.
Manometer tube 1 is furnished with bolt 3 at an end face 2 closed.This bolt 3 has screwed work
First connector of plug-piston-cylinder unit.
In order to produce this piston-cylinder unit, first have to manometer tube 1 is cleared up.Then will set
It is counted as being coated in the whole on outer surface 4 of manometer tube 1 for the basal layer of corrosion-resistant coating, and leads to
Crossing to be dried makes it solidify.
It follows that the end regions 6 originating in another end face 5 of manometer tube 1 is covered in.Existing
With powder coating methods, the surface protection body with powder coating is placed on manometer tube 1, and in temperature
Toasting in degree step, wherein, above-mentioned end regions 6 still keeps being vacated owing to it has covering,
Thus not there is powder coating.Therefore, the externally-located surface of present manometer tube 1 is by starting from second
Subcoat in the end regions 6 of end face 5 and the powder coating structure in remaining region of manometer tube 1
Become.
It follows that it is close comprising additionally in piston 7, piston rod 8, piston rod guide 9 and piston rod
The assembly of sealing 11 loads in the manometer tube 1 that the second end face 5 still opens wide.Furthermore it is preferred that be gas
Pressure fluid be introduced in manometer tube 1 in the case of there is precompressed.Can insert non-dangerously at present
Enter assembly and introduce fluid, this is because the thermic load of manometer tube 1-such as above-mentioned will not be produced again
The category of powder coating methods still occurs this thermic load-.Therefore do not worry next making assembly
Damaging or make pressure fluid expand undesirably, these all can cause breakdown pressure pipe 1.
Now, by radially-inwardly, i.e. groove 10 towards the cincture of manometer tube axis introduces at powder
In the end regions 6 vacated in coating process.This groove 10 axially supports and is arranged in manometer tube
Piston rod guide 9 in 1 and/or piston rod seal component 11.
Additionally, by manometer tube 1 radially inwardly crimping at the second end face 5.The end wall being consequently formed
12 1 aspects enclose manometer tube 1 in side, the most also axially support piston rod guide 9 He
/ or piston rod seal component 11.On the other hand, the edge towards manometer tube axis of crimping constitutes pressure
The end-face hole 13 of solenoid 1, piston rod 8 is derived through this end-face hole from the inside of manometer tube 1.
End regions 6 owing to vacating in powder coating methods does not have powder coating, is therefore drawing
When entering groove 10 and when crimping, all without there is the powder produced due to pressure tube material flowing
The danger of end coating segregation, the danger that particularly powder coating is peeled off.
Then, the medial surface 14 of protection set 15 is coated with the anticorrosive 16 of paste, and from work
Stopper rod side is shifted onto on the end regions 6 of manometer tube 1, until it is entirely around end regions 6.Utilize
Anticorrosive is achieved in that the covering of the medial surface 14 to protection set 15, i.e. anticorrosive 16 adheres to
On the medial surface of protection set 15, and there is such thickness, i.e. shifting protection set onto pressure
After on the end regions 6 of pipe 1, Shangdi is filled in the medial surface of protection set 15 the most to a great extent
And the annular gap between the end regions 6 of manometer tube 1.
On the end towards the first end face 2 of manometer tube 1, protection set 15 side 14 within it
On the first pliable and tough sealing member 17 to cincture that has, this first sealing member surrounds pressure by prestressing force
Solenoid.Thus it can be prevented that makes anticorrosive 16 from guarantor when being shifted onto on manometer tube 1 by protection set 15
The inside of sheath 15 spills and pollutes the powder coating region of manometer tube 1.
That protection set 15 is designed as lid and deviate from the end of the first end face 2 of manometer tube 1 at it
On have bottom 18, and this protection set coaxially there is the through hole 19 on bottom 18.
The inwall of through hole 19 is disposed with radially around the second pliable and tough sealing member 20, piston rod
8 can derive movably through this sealing member, and this sealing member utilizes prestressing force to closely surround
Piston rod 8, so that anticorrosive can not spill in this side from protection set 15.
The external freedom end of piston rod 8 is furnished with the second bolt 21.This bolt 21 has screwed piston
Second connector of-piston-cylinder unit.
Reference number table
1 manometer tube
2 first end faces
3 bolts
4 surfaces
5 second end faces
6 end regions
7 pistons
8 piston rods
9 piston rod guide
10 grooves
11 piston rod seal components
12 end walls
13 end-face holes
14 medial surface
15 protection sets
16 anticorrosives
17 first sealing members
Bottom 18
19 through holes
20 second sealing members
21 second bolts
Claims (16)
1. a piston-cylinder unit, has manometer tube (1) and the piston (7) of cylinder, described
Manometer tube has surface protection body in the outside of described manometer tube, and described piston can be described
Move axially and have piston rod (8) in manometer tube (1), wherein in described manometer tube (1)
End face (5) place, described piston rod (8) through end-face hole (13) hermetically from described
Manometer tube (1) is derived, wherein said manometer tube (1), the institute that starts from piston rod side
State the end regions (6) of end face (5) not in the range of described surface protection body, and
The described end regions (6) in the range of described surface protection body is not by anticorrosive (16)
The protection set (15) of the lid of covering and besieged described end regions (6) hides, institute
State protection and be enclosed within described relative to the piston rod side of described manometer tube (1) of described protection set
Have on the inner end region of end face (5) radially around the first sealing member (17), it is special
Levying and be, described first sealing member (17) tightly abuts against described manometer tube (1)
First sealing member (17) on cylindrical surface (4), flexible, and described protection
Set (15) is coated with thickness for reaching described manometer tube (1) on the medial surface of described protection set
The flow-like on described surface (4) or the described anticorrosive (16) of paste, wherein in institute
State and there is annular gap between the outer surface of piston and the inner surface of described protection set.
Piston-cylinder unit the most according to claim 1, it is characterised in that flexible described first
Sealing member (17) can elastic deformation.
Piston-cylinder unit the most according to claim 1 and 2, it is characterised in that flexible
Described sealing member by one or more radially around sealing lip constitute.
Piston-cylinder unit the most according to claim 1 and 2, it is characterised in that the institute of lid
State protection set (15) described protection set relative to flexible described first sealing member (17)
End on have bottom (18), described bottom has coaxial through hole (19), described work
Stopper rod (8) can be the most protruding through described through hole.
Piston-cylinder unit the most according to claim 3, it is characterised in that the described guarantor of lid
Sheath (15) described protection set relative to flexible described first sealing member (17)
End on have bottom (18), described bottom has coaxial through hole (19), described work
Stopper rod (8) can be the most protruding through described through hole.
Piston-cylinder unit the most according to claim 4, it is characterised in that described through hole (19)
Inwall closely surround described piston rod (8).
Piston-cylinder unit the most according to claim 5, it is characterised in that described through hole (19)
Inwall closely surround described piston rod (8).
Piston-cylinder unit the most according to claim 4, it is characterised in that in described through hole (19)
Inwall on be disposed with radially around flexible second sealing member (20).
Piston-cylinder unit the most according to claim 5, it is characterised in that in described through hole (19)
Inwall on be disposed with radially around flexible second sealing member (20).
Piston-cylinder unit the most according to claim 8, it is characterised in that described protection set (15)
And/or described first sealing member (17) and/or described second sealing member (20) are made up of plastics.
11. piston-cylinder units according to claim 9, it is characterised in that described protection set (15)
And/or described first sealing member (17) and/or described second sealing member (20) are made up of plastics.
12. piston-cylinder units according to claim 1 and 2, it is characterised in that described protection
Set (15) is made up of elastomeric material.
13. piston-cylinder units according to claim 11, it is characterised in that described protection set
(15) it is made up of elastomeric material.
14. piston-cylinder units according to claim 1 and 2, it is characterised in that described surface
Protective is powder coating or layer of paint or electrophoretic paint layer.
15. piston-cylinder units according to claim 13, it is characterised in that described surface is protected
Watch box is powder coating or layer of paint or electrophoretic paint layer.
16. 1 kinds are used for the method manufacturing piston-cylinder unit, and described piston-cylinder unit has cylinder
Manometer tube (1) and piston (7), described manometer tube has table in the outside of described manometer tube
Face protective, described piston can move axially in described manometer tube (1) and have work
Stopper rod (8), wherein at end face (5) place of described manometer tube (1), described piston rod (8)
Derive from described manometer tube (1) hermetically through end-face hole (13), wherein said manometer tube
(1), the end regions (6) of the described end face (5) that starts from piston rod side is described
In the range of surface protection body, and not described end in the range of described surface protection body
Region, portion (6) is covered and besieged described end regions (6) by anticorrosive (16)
Lid protection set (15) hide, described protection be enclosed within described protection set relative to institute
On the inner end region of the described end face (5) stating the piston rod side of manometer tube (1), there is footpath
To first sealing member (17) of cincture, it is characterised in that described protection set (15) is described
The inner side of protection set is coated with the described anticorrosive (16) and then of flow-like or paste
Described protection set is shifted onto described manometer tube (1), not in the range of surface protection body
On described end regions (6), wherein in the outer surface and described protection set of described piston
Annular gap is there is between surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013101558.1A DE102013101558B4 (en) | 2013-02-15 | 2013-02-15 | Piston-cylinder unit and method of manufacturing a piston-cylinder unit |
| DE102013101558.1 | 2013-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103994122A CN103994122A (en) | 2014-08-20 |
| CN103994122B true CN103994122B (en) | 2016-08-17 |
Family
ID=51263748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051885.8A Active CN103994122B (en) | 2013-02-15 | 2014-02-14 | Piston-cylinder unit and the method being used for manufacturing piston-cylinder unit |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5666031B2 (en) |
| KR (1) | KR101561019B1 (en) |
| CN (1) | CN103994122B (en) |
| DE (1) | DE102013101558B4 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014210703B4 (en) * | 2014-06-05 | 2021-08-12 | Zf Friedrichshafen Ag | Piston-cylinder unit |
| DE102017206486A1 (en) * | 2017-04-18 | 2018-10-18 | Zf Friedrichshafen Ag | vibration |
| KR200484937Y1 (en) * | 2017-06-21 | 2017-11-09 | 마게바이앤씨 주식회사 | Protective device of rod and with the same |
| KR102017887B1 (en) | 2018-03-12 | 2019-09-03 | 주식회사 삼홍사 | Gas cylinder, Gas spring for preventing gas leakage and method for manufacturing the same |
| US10690214B2 (en) * | 2018-08-14 | 2020-06-23 | Daystar Products International, Inc. | Shield for vehicle shock absorber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416189A1 (en) * | 2002-11-02 | 2004-05-06 | Stabilus GmbH | Piston-cylinder unit |
| JP2007085377A (en) * | 2005-09-20 | 2007-04-05 | Kayaba Ind Co Ltd | Gas spring |
| JP2010071396A (en) * | 2008-09-18 | 2010-04-02 | Yamaha Motor Co Ltd | Shock absorber, vehicle having the same and assembling method of shock absorber |
| CN101790647A (en) * | 2007-09-04 | 2010-07-28 | 大金工业株式会社 | Gas pressure type actuator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1630168B2 (en) | 1967-04-04 | 1974-08-22 | Christian Genf Bourcier De Carbon (Schweiz) | Damper or suspension strut for vehicle wheel axle supports |
| US4167991A (en) * | 1977-12-02 | 1979-09-18 | General Motors Corporation | Plastic dust tube for shock absorber |
| JPS59171238U (en) * | 1983-05-02 | 1984-11-15 | 株式会社 ドリ−ム総合研究所 | Gas spring for bed with storage box |
| JPS617638U (en) * | 1984-06-20 | 1986-01-17 | トヨタ自動車株式会社 | steering damper |
| US5791445A (en) * | 1997-05-26 | 1998-08-11 | Fichtel & Sachs Industries, Inc. | Piston rod-cylinder assembly with shrink-wrap corrosion protective sleeve |
| DE102004060304B4 (en) | 2004-12-15 | 2010-01-14 | Stabilus Gmbh | Piston-cylinder unit and method of manufacturing a piston-cylinder unit |
| DE102008040984A1 (en) * | 2007-08-28 | 2009-03-05 | Zf Friedrichshafen Ag | Protective tube for a piston-cylinder unit |
-
2013
- 2013-02-15 DE DE102013101558.1A patent/DE102013101558B4/en active Active
-
2014
- 2014-02-14 JP JP2014026441A patent/JP5666031B2/en active Active
- 2014-02-14 CN CN201410051885.8A patent/CN103994122B/en active Active
- 2014-02-14 KR KR1020140017254A patent/KR101561019B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416189A1 (en) * | 2002-11-02 | 2004-05-06 | Stabilus GmbH | Piston-cylinder unit |
| JP2007085377A (en) * | 2005-09-20 | 2007-04-05 | Kayaba Ind Co Ltd | Gas spring |
| CN101790647A (en) * | 2007-09-04 | 2010-07-28 | 大金工业株式会社 | Gas pressure type actuator |
| JP2010071396A (en) * | 2008-09-18 | 2010-04-02 | Yamaha Motor Co Ltd | Shock absorber, vehicle having the same and assembling method of shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013101558B4 (en) | 2019-02-28 |
| CN103994122A (en) | 2014-08-20 |
| KR20140103076A (en) | 2014-08-25 |
| KR101561019B1 (en) | 2015-10-19 |
| JP5666031B2 (en) | 2015-02-04 |
| DE102013101558A1 (en) | 2014-08-21 |
| JP2014156932A (en) | 2014-08-28 |
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