CN201763594U - Plunger piston sealing ring - Google Patents
Plunger piston sealing ring Download PDFInfo
- Publication number
- CN201763594U CN201763594U CN2010202050835U CN201020205083U CN201763594U CN 201763594 U CN201763594 U CN 201763594U CN 2010202050835 U CN2010202050835 U CN 2010202050835U CN 201020205083 U CN201020205083 U CN 201020205083U CN 201763594 U CN201763594 U CN 201763594U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- lip
- sealing
- epipharynx
- utility
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 abstract description 4
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 230000004323 axial length Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to a plunger piston sealing ring, which comprises an annular sealing ring body, wherein asymmetrical sealing lip structures are arranged on the sealing ring body, i.e. an inner lip is thick, and an outer lip is thin. A groove formed by the inner lip and the outer lip is in symmetrical arrangement with pitch diameter, and the sealing ring body is made of materials of polyurethane A-95. The utility model has the characteristics of simple structure, long service use, good sealing performance and the like, and is convenient in use.
Description
Technical field
The utility model relates to a kind of novel plunger seal circle that is used for mining grouting pump of high pressure coal or slurry pump, belongs to a kind of Sealing.
Background technique
U type or Y shape pillar plug sealing ring usually adopted symmetrical seal lip structure in the past, and the epipharynx that promptly forms the seal ring lip is identical with outer lip thickness, sees shown in Figure 1; Also have and adopt the structure that epipharynx is thin, outer lip is thick.The seal ring that said structure is formed, its epipharynx is easy to wear, and the amount of augmenting of wearing and tearing back seal ring self is not enough, has influence on the working life of seal ring.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of simple in structure, and is easy to use, the plunger seal circle of long service life.
The purpose of this utility model is finished by following technical solution, and it comprises the sealing circle body of an annular, and the sealing circle body is provided with asymmetric seal lip structure, and promptly epipharynx is thick, outer lip thin.
The described groove that is made of epipharynx and outer lip is to be symmetrical arranged with middle footpath, and described sealing circle body is made by polyurethane A-95 material.
The utility model belongs to a kind of improvement to prior art, and it has simple in structure, and is easy to use, long service life, characteristics such as good seal performance.
Description of drawings
Fig. 1 is the prior art constructions schematic representation.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Figure 2, the utility model comprises the sealing circle body 1 of an annular, and sealing circle body 1 is provided with asymmetric seal lip structure, and promptly epipharynx is 2 thick, outer lip 3 is thin.
The described groove 4 that is made of epipharynx 2 and outer lip 3 is to be symmetrical arranged with middle footpath, and described sealing circle body 1 is made by polyurethane A-95 material.
The utility model provides a kind of novel plunger seal circle simple in structure, its performance characteristics is: U type plunger seal circle is changed a little, soon footpath d1 is increased to d2 (as shown in Figure 1 and Figure 2 in the seal ring, d1＜d2), groove 4 still and middle footpath symmetry, at this moment lip thickness just is increased to b (a＜b) by a in the seal ring.When plunger very easily weares and teares at to-and-fro motion center pillar plug sealing ring epipharynx, the novel plunger seal circle that this epipharynx is thick, outer lip is thin can improve the self-compensation situation amount of seal ring, thereby prolongs the working life of plunger seal circle.
Working principle: the plunger seal circle is under the low pressure situation, and only the interference distortion by lip produces sealing, and because of area of contact is little, frictional force is relatively low.Along with pressure raises, the lip elastic deformation amount increases, stretching, compression and flexural stress increase, it is big that plunger seal circle radial compaction power becomes automatically, the length that contacts with sealing surface constantly increases, contact with sealing surface up to the whole axial length of seal ring, thereby guarantee to have good sealing property under the high pressure conditions.The whole axial length of high pressure conditions lower plunger seal ring inner ring closely contacts with the plunger surface sealing surface, and plunger is in the middle of the to-and-fro motion that does not stop, and simultaneously, the medium that grouting pump is carried is slurries, so plunger seal circle epipharynx very easily weares and teares; Therefore the coupled columns plug sealing ring is changed a little, with footpath d1 in the plunger seal circle be increased to d2 (d1＜d2), groove still and middle footpath symmetry, at this moment in the seal ring lip thickness just be increased to b (a＜b) by a.The novel plunger seal circle that this epipharynx is thick, outer lip is thin can improve the self-compensation situation amount of seal ring, thereby improves the self-styled performance of seal ring, and can prolong the working life of plunger seal circle.When adopting polyurethane A-95 material, also have characteristics such as wear-resisting, high temperature resistant and corrosion-resistant.
Claims (2)
1. plunger seal circle, it comprises the sealing circle body of an annular, it is characterized in that the sealing circle body is provided with asymmetric seal lip structure, promptly epipharynx is thick, outer lip thin.
2. plunger seal circle according to claim 1 is characterized in that the described groove that is made of epipharynx and outer lip is to be symmetrical arranged with middle footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050835U CN201763594U (en) | 2010-05-24 | 2010-05-24 | Plunger piston sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202050835U CN201763594U (en) | 2010-05-24 | 2010-05-24 | Plunger piston sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763594U true CN201763594U (en) | 2011-03-16 |
Family
ID=43716200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202050835U Expired - Lifetime CN201763594U (en) | 2010-05-24 | 2010-05-24 | Plunger piston sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994228A (en) * | 2014-05-13 | 2014-08-20 | 嘉兴新中南汽车零部件有限公司 | Angular lip-shaped rubber sealing ring |
-
2010
- 2010-05-24 CN CN2010202050835U patent/CN201763594U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994228A (en) * | 2014-05-13 | 2014-08-20 | 嘉兴新中南汽车零部件有限公司 | Angular lip-shaped rubber sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HANGZUAN MECHINE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: LU XIAOLING Effective date: 20111206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111206 Address after: 310016, 116 triumph Road, Zhejiang, Hangzhou Patentee after: Zhejiang Hangzuan Mechine Manufacturing Co., Ltd. Address before: 310016, C building, floor 27, International Plaza, No. 445, triumph Road, Zhejiang, Zhejiang (Limited by Share Ltd) (Hangzhou Construction Machinery Department) Patentee before: Lu Xiaoling |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |