CN107420373A - The piston rod of sealed reliable - Google Patents
The piston rod of sealed reliable Download PDFInfo
- Publication number
- CN107420373A CN107420373A CN201710783006.4A CN201710783006A CN107420373A CN 107420373 A CN107420373 A CN 107420373A CN 201710783006 A CN201710783006 A CN 201710783006A CN 107420373 A CN107420373 A CN 107420373A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- described sleeve
- sealing ring
- passage
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of piston rod of sealed reliable, include the body and sealing ring of cylinder, also include a sleeve pipe, the body is multi-diameter shaft, the body includes Part I and Part II, the Part I diameter is more than the Part II, the external diameter of described sleeve pipe is identical with the Part I diameter, described sleeve pipe is connected on the Part II, the sealing ring is arranged on the position between described sleeve pipe and the Part I on the body, the sealing ring includes cross section for the main body of arc and the connecting plate at the main body both ends, the end face of the connecting plate insertion described sleeve pipe and the Part I, passage is provided with the Part I, the passage runs through two end faces of the Part I, paraffin is provided with the passage.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder, more particularly to the piston rod used on hydraulic cylinder.
Background technology
Piston rod in hydraulic cylinder includes the body of cylinder, and described body sidewall sets groove, sealing is set in groove
Circle.Traditional sealing ring is all the rubber ring of a ring shape, and this sealing ring can not be adjusted, and can not sometimes be formed effective
Sealing, it is therefore necessary to improved.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of piston rod of sealed reliable, piston rod, its
Sealing surface can be adjusted.
The present invention is achieved through the following technical solutions：The piston rod of sealed reliable, include the body and close of cylinder
Seal, in addition to a sleeve pipe, the body are multi-diameter shaft, and the body includes Part I and Part II, described first
Section diameter is more than the Part II, and the external diameter of described sleeve pipe is identical with the Part I diameter, and described sleeve pipe is connected to
On the Part II, the sealing ring is arranged on the position between described sleeve pipe and the Part I on the body
Put, the sealing ring includes cross section for the main body of arc and the connecting plate at the main body both ends, described in the connecting plate insertion
The end face of sleeve pipe and the Part I, passage is provided with the Part I, the passage is through the Part I
Two end faces, paraffin is provided with the passage.In use, existing by the paraffin injection gallery of heated liquid state, paraffin
In the closed cavity surrounded by being flowed into sealing ring and body after passage, until being formed enough between sealing ring and sealing surface
Seal pressure, a period of time is then kept, until paraffin cools down.If necessary to adjust the pressure of sealing surface, then work can be heated
Stopper rod, allow paraffin to become liquid, be then adjusted again.
In above-mentioned technical proposal, it is preferred that described sleeve pipe is connected on the Part II by interference fit.
The present invention has the advantages that：In use, existing by the paraffin injection gallery of heated liquid state, paraffin
In the closed cavity surrounded by being flowed into sealing ring and body after passage, until being formed enough between sealing ring and sealing surface
Seal pressure, a period of time is then kept, until paraffin cools down.If necessary to adjust the pressure of sealing surface, then work can be heated
Stopper rod, allow paraffin to become liquid, be then adjusted again.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 close-up schematic view.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Referring to Fig. 1-2, the piston rod of sealed reliable, include cylindrical body 1 and sealing ring 2, in addition to a sleeve pipe 3.
The body is multi-diameter shaft, and the body 1 includes Part I 11 and Part II 12, and the Part I 11 is straight
Footpath is more than the Part II 12, and the external diameter of described sleeve pipe 3 is identical with the diameter of Part I 11, and described sleeve pipe 3 passed through
Mating connection be full of on the Part II 12.
The sealing ring 2 is arranged on the position between described sleeve pipe 3 and the Part I 11 on the body 1,
The sealing ring 2 includes cross section and inserted for the main body 21 of arc and the connecting plate 22 at the main body both ends, the connecting plate 22
The end face of described sleeve pipe 3 and the Part I 11, passage 1a, the passage 1a are provided with the Part I 11 and runs through institute
Two end faces of Part I 11 are stated, paraffin 4 is provided with the passage 1a.
In use, existing by the paraffin injection gallery of heated liquid state, paraffin after passage by being flowed into sealing ring
In the closed cavity surrounded with body, until forming enough seal pressures between sealing ring and sealing surface, one section is then kept
Time, after paraffin cooling, paraffin cooling, become solid-state, at this time paraffin will not just move in passage.Sealing ring
Sealing pressure also just secure.If necessary to adjust the pressure of sealing surface, then piston rod can be heated, allows paraffin to become liquid
Body, then it is adjusted again.
Claims (2)
1. the piston rod of sealed reliable, include the body and sealing ring of cylinder, it is characterised in that：Also include a sleeve pipe, institute
It is multi-diameter shaft to state body, and the body includes Part I and Part II, and the Part I diameter is more than described second
Point, the external diameter of described sleeve pipe is identical with the Part I diameter, and described sleeve pipe is connected on the Part II, the sealing
Circle is arranged on the position on the body between described sleeve pipe and the Part I, and the sealing ring is including cross section
The end face of the main body of arc and the connecting plate at the main body both ends, the connecting plate insertion described sleeve pipe and the Part I,
Passage is provided with the Part I, the passage runs through two end faces of the Part I, is provided with the passage
Paraffin.
2. the piston rod of sealed reliable according to claim 1, it is characterised in that：Described sleeve pipe is connected by being interference fitted
On the Part II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783006.4A CN107420373A (en) | 2017-09-03 | 2017-09-03 | The piston rod of sealed reliable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783006.4A CN107420373A (en) | 2017-09-03 | 2017-09-03 | The piston rod of sealed reliable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420373A true CN107420373A (en) | 2017-12-01 |
Family
ID=60435599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710783006.4A Pending CN107420373A (en) | 2017-09-03 | 2017-09-03 | The piston rod of sealed reliable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131237A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | A kind of piston of hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251189A (en) * | 2007-12-21 | 2008-08-27 | 浙江国泰密封材料股份有限公司 | Netted metallic reinforced sealing plate and producing method thereof |
| CN201391296Y (en) * | 2009-04-01 | 2010-01-27 | 马中原 | Framework sealing ring and anti-blocking self sealing seal section |
| CN202707675U (en) * | 2012-08-23 | 2013-01-30 | 成都智利达科技有限公司 | Hydraulic device with free piston |
| JP2015200379A (en) * | 2014-04-09 | 2015-11-12 | コベルコ建機株式会社 | Cushion device for hydraulic cylinder |
| DE202015007826U1 (en) * | 2014-12-02 | 2016-01-23 | Xertecs Gmbh | Cable feedthrough device for fluidized bed plants |
-
2017
- 2017-09-03 CN CN201710783006.4A patent/CN107420373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251189A (en) * | 2007-12-21 | 2008-08-27 | 浙江国泰密封材料股份有限公司 | Netted metallic reinforced sealing plate and producing method thereof |
| CN201391296Y (en) * | 2009-04-01 | 2010-01-27 | 马中原 | Framework sealing ring and anti-blocking self sealing seal section |
| CN202707675U (en) * | 2012-08-23 | 2013-01-30 | 成都智利达科技有限公司 | Hydraulic device with free piston |
| JP2015200379A (en) * | 2014-04-09 | 2015-11-12 | コベルコ建機株式会社 | Cushion device for hydraulic cylinder |
| DE202015007826U1 (en) * | 2014-12-02 | 2016-01-23 | Xertecs Gmbh | Cable feedthrough device for fluidized bed plants |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131237A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | A kind of piston of hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |