CN104455447A - Hydraulic seal element - Google Patents
Hydraulic seal element Download PDFInfo
- Publication number
- CN104455447A CN104455447A CN201410737998.3A CN201410737998A CN104455447A CN 104455447 A CN104455447 A CN 104455447A CN 201410737998 A CN201410737998 A CN 201410737998A CN 104455447 A CN104455447 A CN 104455447A
- Authority
- CN
- China
- Prior art keywords
- ring
- type circle
- pressure
- hydraulic seal
- 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
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a hydraulic seal element which comprises a V-shaped ring and a fixing ring, and is characterized in that the fixing ring is fixedly connected to a shaft sleeve; the end part of the fixing ring is clung to a pressure ring; the end part of the pressure ring is clung to the V-shaped ring; the end part of the V-shaped ring is clung to a supporting ring; the pressure ring and the supporting ring are fixedly connected to a piston rod respectively; the V-shaped ring is in close contact with the shaft sleeve and the piston rod. The hydraulic seal element is simple in structure, has the advantages of good seal effect and convenient dismounting in comparison with a conventional hydraulic seal element, and not only is good in seal performance when the pressure is low but also is large in contact area and relatively good in seal performance along with increment of working pressure.
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 V type circle and retaining ring, it is characterized in that: described retaining ring is fixedly connected on axle sleeve
On, the end of retaining ring is near pressure ring, and the end of pressure ring is near described V type circle, and the end of V type circle is near supporting ring.Described pressure ring and supporting ring are fixedly connected on piston rod respectively, described V type circle and axle sleeve and piston rod close contact.
Further technological scheme is:
Described V type ring comprises multiple.
Described pressure ring has the recess matched with described V type circle.
Described supporting ring has the protuberance matched with described V type circle.
Technique effect of the present invention is:
Structure of the present invention is simple, more traditional hydraulic seal, and it has good sealing effect, the advantage of convenient disassembly,
The present invention not only has good sealability when low pressure, and along with the raising of working pressure, area of contact increases, and sealability is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
See Fig. 1, the present invention includes multiple V type circle 5 and retaining ring 2, retaining ring 2 is fixedly connected on axle sleeve 1, the end of retaining ring 2 near pressure ring 4, the end of pressure ring 4 near the end of V type circle 5, V type circle 5 near supporting ring 6.Pressure ring 4 and supporting ring 6 are fixedly connected on piston rod 3 respectively, V type circle 5 and axle sleeve 1 and piston rod 3 close contact.In the present invention, pressure ring 4 has the recess matched with V type circle 5, and supporting ring 6 has the protuberance matched with V type circle 5, and the effect of pressure ring 4 makes V type circle 6 form initial compression amount, makes it fully contact with by sealing surface.
V type circle of the present invention has radial tightening when using, and makes its seal lip and internal-and external diameter by sealing surface close contact, thus has good sealability when low pressure, and along with the raising of working pressure, area of contact increases, and sealability is better.
Claims (4)
1. a hydraulic seal, comprises V type circle and retaining ring, it is characterized in that: described retaining ring is fixedly connected on axle sleeve
On, the end of retaining ring is near pressure ring, and the end of pressure ring is near described V type circle, and the end of V type circle is near supporting ring, and described pressure ring and supporting ring are fixedly connected on piston rod respectively, described V type circle and axle sleeve and piston rod close contact.
2. according to the hydraulic seal described in claim 1, it is characterized in that: described V type ring comprises multiple.
3. according to the hydraulic seal described in claim 1, it is characterized in that: described pressure ring has and described V type circle kissing
The recess closed.
4. according to the hydraulic seal described in claim 1, it is characterized in that: described supporting ring has and described V type circle phase
The protuberance coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737998.3A CN104455447A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737998.3A CN104455447A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455447A true CN104455447A (en) | 2015-03-25 |
Family
ID=52901972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410737998.3A Pending CN104455447A (en) | 2014-12-06 | 2014-12-06 | Hydraulic seal element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455447A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879494A (en) * | 2015-04-22 | 2015-09-02 | 安徽龙行密封件有限公司 | Diesel oil filter seal ring |
| CN109707616A (en) * | 2017-10-25 | 2019-05-03 | 株式会社丸山制作所 | The manufacturing method of reciprocating piston pump and piston seal |
| CN110617336A (en) * | 2018-06-19 | 2019-12-27 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116451A (en) * | 1977-06-16 | 1978-09-26 | Maurer Engineering, Inc. | Shaft seal assembly and seal ring therefor |
| CN2163272Y (en) * | 1993-06-21 | 1994-04-27 | 成都市教育技术装备管理所 | Reciprocating mechanical sealing device |
| CN103851200A (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 CN201410737998.3A patent/CN104455447A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116451A (en) * | 1977-06-16 | 1978-09-26 | Maurer Engineering, Inc. | Shaft seal assembly and seal ring therefor |
| CN2163272Y (en) * | 1993-06-21 | 1994-04-27 | 成都市教育技术装备管理所 | Reciprocating mechanical sealing device |
| CN103851200A (en) * | 2012-11-30 | 2014-06-11 | 无锡市金凯利液压机械有限公司 | Hydraulic sealing part |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879494A (en) * | 2015-04-22 | 2015-09-02 | 安徽龙行密封件有限公司 | Diesel oil filter seal ring |
| CN109707616A (en) * | 2017-10-25 | 2019-05-03 | 株式会社丸山制作所 | The manufacturing method of reciprocating piston pump and piston seal |
| CN109707616B (en) * | 2017-10-25 | 2019-10-29 | 株式会社丸山制作所 | The manufacturing method of reciprocating piston pump and piston seal |
| CN110617336A (en) * | 2018-06-19 | 2019-12-27 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN110617336B (en) * | 2018-06-19 | 2021-05-25 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |