CN202520936U - Compound bidirectional piston sealing ring - Google Patents
Compound bidirectional piston sealing ring Download PDFInfo
- Publication number
- CN202520936U CN202520936U CN201220158193XU CN201220158193U CN202520936U CN 202520936 U CN202520936 U CN 202520936U CN 201220158193X U CN201220158193X U CN 201220158193XU CN 201220158193 U CN201220158193 U CN 201220158193U CN 202520936 U CN202520936 U CN 202520936U
- Authority
- CN
- China
- Prior art keywords
- ring
- bidirectional piston
- sealing ring
- piston sealing
- compound bidirectional
- 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
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 title abstract description 14
- 150000001875 compounds Chemical class 0.000 title abstract 7
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 12
- 239000004814 polyurethane Substances 0.000 claims abstract description 12
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 9
- 239000005060 rubber Substances 0.000 claims abstract description 9
- 229930040373 Paraformaldehyde Natural products 0.000 claims abstract description 8
- -1 polyoxymethylene Polymers 0.000 claims abstract description 8
- 239000000806 elastomer Substances 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000005065 mining Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 229920013644 Chemigum Polymers 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000008520 organization Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Sealing Devices (AREA)
- Sealing Material Composition (AREA)
Abstract
The utility model relates to a compound bidirectional piston sealing ring. The compound bidirectional piston sealing ring comprises a polyurethane sealing body, a polyoxymethylene wear-resisting ring and a rubber elastomer. A semi-arc-shaped protruding lip is arranged in the middle inside the polyurethane sealing body, and a circular groove is arranged in the middle of the polyoxymethylene wear-resisting ring. The semi-arc-shaped protruding lip and the circular groove correspond to each other and are locked naturally to avoid displacement generated by the polyurethane sealing body and the rubber elastomer caused by too many pressing processes so that the sealing performance is better and the service life is longer. The compound bidirectional piston sealing ring is mainly applied to the fields of engineering machinery, mining hydraulic bracket and the like and solves the problem that the sealing performance of the drum is disabled caused by displacement of the drum ring and the chemigum ring when the check ring is invalid in the former drum which is frequently pressed. According to the compound bidirectional piston sealing ring provided by the utility model, the deficiencies are overcome when the compound bidirectional piston sealing ring is used for the hydraulic pressing test, and the pressing time exceeds two times that of ISO (International Standardization Organization) standard. The service life of the compound bidirectional piston sealing ring is prolonged so as to create a favorable condition for quality upgrade of products in the future.
Description
One, technical field
The utility model relates to the combined bidirectional piston packing.
Two, background technique
Polyurethane drum type ring structure was introduced by China in the seventies; Use in a large number in the 80-90 age; On structural design, have certain defective, because this structure is the primary seal product of external hydraulic support, China colleague personage does not have sufficient understanding and understanding to this.Through analysis to the similar problem that takes place in the early stage a large amount of using processs of each coal machine factory; Explain that there is the certain designed defective in this sealing structure, this point in be suggested on the publication of " Chinese specific rubber article " magazine, seal authoritative unit by country; Point out already on sealing detection center northwest rubber plastic research institute of country chief editor's the document and discussed; After the back-up ring inefficacy that as usual drum type occurs, the drum type circle is broken by high pressure very soon, causes the cylinder body leakage.
Three, the content of model utility
The purpose of the utility model is the deficiency to existing technology, provides a kind of structure more reasonable, the better combined bidirectional piston packing of sealability.
The purpose of the utility model realizes like this: it comprises: polyurethane seal, polyoxymethylene wear ring, rubber elastomer are formed; The inboard middle protruding lip of semi-circle that is provided with at the polyurethane seal; Centre at the polyoxymethylene wear ring is provided with arc groove, and the corresponding nature that produces with arc groove of the protruding lip of its semi-circle is locked.
The utility model provides a kind of combined bidirectional piston packing, is mainly used in engineering machinery, a plurality of fields such as mine hydraulic bracket.Its objective is to solve the drum type circle that when frequently suppressing back back-up ring inefficacy, causes of old drum type appearance and the displacement of nitrile butadiene rubber circle, the drum type sealability was lost efficacy.The utility model above defective can not occur in mining hydraulic pressure bulge test, and suppresses the twice that number of times has surpassed ISO country formulation standard, and prolong this novel working life, for the quality upgrading of later product has been created advantageous conditions.
Four, description of drawings
Accompanying drawing 1 is the sectional view of the utility model combined bidirectional piston packing.
Accompanying drawing 2 is the structural representation of the utility model combined bidirectional piston packing.
Wherein: 1-polyurethane seal, 2-polyoxymethylene wear ring, 3-rubber elastomer, the protruding lip of 4-semi-circle, 5-arc groove.
Five, embodiment
Come the utility model done below in conjunction with accompanying drawing and embodiment and describe in further detail.
With reference to accompanying drawing; The utility model combined bidirectional piston packing; It comprises: polyurethane seal 1, polyoxymethylene wear ring 2, rubber elastomer 3 are formed, and are provided with the protruding lip 4 of semi-circle at the inboard middle of polyurethane seal 1, are provided with arc groove 5 in the centre of polyoxymethylene wear ring 2; The protruding lip 4 of its semi-circle is locked with the arc groove 5 corresponding natures that produce; Avoided polyurethane seal 1 that when the process of suppressing is too much, causes and the displacement that rubber elastomer 3 is produced, made sealability better, longer service life.
Claims (1)
1. combined bidirectional piston packing, it comprises: polyurethane seal (1), polyoxymethylene wear ring (2), rubber elastomer (3) are formed, and it is characterized in that; Be provided with the protruding lip of semi-circle (4) at the inboard middle of polyurethane seal (1), be provided with arc groove (5) in the centre of polyoxymethylene wear ring (2), the corresponding nature that produces with arc groove (5) of the protruding lip of its semi-circle (4) is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220158193XU CN202520936U (en) | 2012-04-03 | 2012-04-03 | Compound bidirectional piston sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220158193XU CN202520936U (en) | 2012-04-03 | 2012-04-03 | Compound bidirectional piston sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520936U true CN202520936U (en) | 2012-11-07 |
Family
ID=47103888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220158193XU Expired - Lifetime CN202520936U (en) | 2012-04-03 | 2012-04-03 | Compound bidirectional piston sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422844A (en) * | 2015-12-15 | 2016-03-23 | 苏州国泰科技发展有限公司 | Piston sealing ring |
-
2012
- 2012-04-03 CN CN201220158193XU patent/CN202520936U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422844A (en) * | 2015-12-15 | 2016-03-23 | 苏州国泰科技发展有限公司 | Piston sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202391375U (en) | Self-pressurizing self-lubricating offset-regulating sealing device for polish rod | |
| CN202580030U (en) | Bud-shaped sealing ring | |
| CN202520936U (en) | Compound bidirectional piston sealing ring | |
| CN201391553Y (en) | Sealed bearing block | |
| CN201915886U (en) | Automatic regulating sealer for polish rod of oil well | |
| CN201651322U (en) | Y-shaped sealing ring for reciprocating motion using | |
| CN201723723U (en) | Y-type leather cup sealing member with inner double lips or outer double lips | |
| CN204985728U (en) | A sealing washer is used to axle for piston rod packing | |
| CN202520946U (en) | One-way static seal Y-shaped rubber sealing ring for hydraulic cylinder bracket | |
| CN201982667U (en) | Cylinder body seal for hydraulic breaking hammer | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN204921349U (en) | A special plunger spring unit of axial plunger pump that is used for railway hydraulic pressure to remove | |
| CN201884658U (en) | Sealing ring of hydraulic cylinder piston | |
| CN201992126U (en) | Electric control reversing valve | |
| CN202851956U (en) | Rectangle groove sealing structure | |
| CN202851965U (en) | Novel sealing ring | |
| CN102261492A (en) | Electric control reversing valve | |
| CN203770122U (en) | Slurry pump piston sealing device | |
| CN203856708U (en) | Plunger packing protector for plunger pump | |
| CN202301957U (en) | Combined sealing ring for MBD shaft | |
| CN202144812U (en) | Hydraulic oil cylinder with dustproof cover | |
| CN203176365U (en) | Pressureproof piston sealing element | |
| CN202520955U (en) | Internal-embedded type one-way polyurethane piston rod sealing ring | |
| CN203948634U (en) | Guide sleeve dust protection rubber seal ring for hydraulic cylinder leg | |
| CN204553204U (en) | A kind of mud piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI COLOGNE ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XIANYANG KELONG SPECIAL RUBBER PRODUCT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 712000, No. 2, Cang Han Road, West hi tech Development Zone, Xianyang, Shaanxi Patentee after: SHAANXI KELONG ENERGY TECHNOLOGY CO., LTD. Address before: 712000, No. 2, Cang Han Road, West hi tech Development Zone, Xianyang, Shaanxi Patentee before: Xianyang Kelong Special Rubber Product Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI KELONG ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHAANXI COLOGNE ENERGY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 712000, No. 2, Cang Han Road, West hi tech Development Zone, Xianyang, Shaanxi Patentee after: SHAANXI KELONG ENERGY TECHNOLOGY CORP. LTD. Address before: 712000, No. 2, Cang Han Road, West hi tech Development Zone, Xianyang, Shaanxi Patentee before: SHAANXI KELONG ENERGY TECHNOLOGY CO., LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Compound bidirectional piston sealing ring Effective date of registration: 20160218 Granted publication date: 20121107 Pledgee: Bank of Changan, Limited by Share Ltd, Xianyang hi tech sub branch Pledgor: SHAANXI KELONG ENERGY TECHNOLOGY CORP. LTD. Registration number: 2016110000001 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180313 Granted publication date: 20121107 Pledgee: Bank of Changan, Limited by Share Ltd, Xianyang hi tech sub branch Pledgor: SHAANXI KELONG ENERGY TECHNOLOGY CORP., LTD. Registration number: 2016110000001 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |