CN104633124A - Hydraulic seal part - Google Patents
Hydraulic seal part Download PDFInfo
- Publication number
- CN104633124A CN104633124A CN201410737812.4A CN201410737812A CN104633124A CN 104633124 A CN104633124 A CN 104633124A CN 201410737812 A CN201410737812 A CN 201410737812A CN 104633124 A CN104633124 A CN 104633124A
- Authority
- CN
- China
- Prior art keywords
- hydraulic seal
- seal part
- type circle
- ring
- slip ring
- 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
- 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
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a hydraulic seal part which comprises an O-shaped ring and a sliding ring. The hydraulic seal part is characterized in that the O-shaped ring is located in an annular groove formed in a piston rod, and the sliding ring is located between the O-shaped ring and the inner wall of a cylinder body and is in tight contact with the inner wall of the cylinder body and the O-shaped ring. The hydraulic seal part is simple in structure and has the advantages of being good in sealing effect and convenient to dismount compared with a traditional hydraulic seal part. Due to the fact that the sliding ring is in linear contact with the inner wall of the cylinder body, friction force is greatly decreased, and the service life is prolonged.
Description
Technical field
The present invention relates to field of hydraulic equipment, particularly hydraulic seal.
Background technique
Sealing is one of effective means solving hydraulic system leakage problem.When the sealing of hydraulic system is bad, meeting is befouling environment because of external leakage; Air also can be caused to enter hydraulic system and affect the service behaviour of oil hydraulic pump and the stationarity of hydraulic actuator motion; When internal leakage is serious, the too low and oil liquid temperature of system volume efficiency can be caused to rise too high, so that system cisco unity malfunction.Along with the progress of technology and the raising of equipment performance, the requirement of hydraulic system to sealing is more and more higher, and traditional seal ring is used alone can not well satisfy the demand.
Summary of the invention
The applicant, for the above-mentioned shortcoming of conventional hydraulic Sealing, carries out studying and improving, provides a kind of hydraulic seal
Part, it has, and structure is simple, the feature of convenient disassembly, good sealing effect.
In order to solve the problem, the present invention adopts following scheme:
A kind of hydraulic seal, comprises O type circle and slip ring, it is characterized in that: described O type circle is positioned at the annular groove of piston rod
In, described slip ring is positioned between O type circle and inboard wall of cylinder block, and with described inboard wall of cylinder block and described O type circle close contact.
Further technological scheme is: the cross section inner ring of described slip ring has cone angle.
Technique effect of the present invention is: structure of the present invention is simple, and more traditional hydraulic seal, it has good sealing effect, the advantage of convenient disassembly, because slip ring and inboard wall of cylinder block adopt linear contact lay, greatly reduces frictional force, extends working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
See Fig. 1, the present invention includes O type circle 2 and slip ring 3, it is characterized in that: described O type circle 2 is positioned at piston rod 1
In annular groove 5, described slip ring 3 is positioned between O type circle 2 and cylinder body 6 inwall, and with described cylinder body 6 inwall and described O type circle 2 close contact.The cross section inner ring of described slip ring 3 has cone angle 4, makes slip ring 3 and cylinder body 6 inwall form linear contact lay form.
The present invention has given full play to the respective strong point of RUBBER O RunddichtringO and slip ring, and not only reliable operation, frictional force is low
And stable type is good, substantially prolongs working life.
Claims (2)
1. a hydraulic seal, comprises O type circle and slip ring, it is characterized in that: described O type circle is positioned at the annular groove of piston rod, and described slip ring is positioned between O type circle and inboard wall of cylinder block, and with described inboard wall of cylinder block and described O type circle close contact.
2. according to the hydraulic seal described in claim 1, it is characterized in that: the cross section inner ring of described slip ring has cone angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737812.4A CN104633124A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737812.4A CN104633124A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104633124A true CN104633124A (en) | 2015-05-20 |
Family
ID=53212198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410737812.4A Pending CN104633124A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633124A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317483A1 (en) * | 1993-05-26 | 1994-12-01 | Teves Gmbh Alfred | Piston, particularly for the turbo cylinder of a power-assisted steering system |
| CN101776147A (en) * | 2010-01-08 | 2010-07-14 | 天津科技大学 | Dynamic seal structure with automatic compensation function |
| CN103851201A (en) * | 2012-11-30 | 2014-06-11 | 无锡市金凯利液压机械有限公司 | Hydraulic sealing part |
-
2014
- 2014-12-06 CN CN201410737812.4A patent/CN104633124A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317483A1 (en) * | 1993-05-26 | 1994-12-01 | Teves Gmbh Alfred | Piston, particularly for the turbo cylinder of a power-assisted steering system |
| CN101776147A (en) * | 2010-01-08 | 2010-07-14 | 天津科技大学 | Dynamic seal structure with automatic compensation function |
| CN103851201A (en) * | 2012-11-30 | 2014-06-11 | 无锡市金凯利液压机械有限公司 | Hydraulic sealing part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |