CN201027968Y - Plastic soft belt piston ring - Google Patents
Plastic soft belt piston ring Download PDFInfo
- Publication number
- CN201027968Y CN201027968Y CNU2007200682010U CN200720068201U CN201027968Y CN 201027968 Y CN201027968 Y CN 201027968Y CN U2007200682010 U CNU2007200682010 U CN U2007200682010U CN 200720068201 U CN200720068201 U CN 200720068201U CN 201027968 Y CN201027968 Y CN 201027968Y
- Authority
- CN
- China
- Prior art keywords
- piston ring
- joint
- plastic soft
- utility
- soft zone
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a plastic flexible piston ring which is designed to provide a plastic flexible piston ring with convenient installation and dismantlement and good staying quality and leak tightness. The utility model comprises a columnar piston ring with joint and is characterized in that the piston ring mainly made of polyfluortetraethylene is filled with the solid wearable powder material, and the joint is the joint close of a form of interlocking teeth. Because the piston ring of the utility model mainly made of polyfluortetraethylene is filled with the solid wearable powder material, the staying quality is good, the piston ring has certain elasticity and the installation and dismantlement is convenient. By adopting the joint with interlocking teeth, the adjacent interlocking teeth are always in the state of being pressed and jointed when the piston ring works to and fro, which results in good leak tightness in the circle direction, even if the outspread length has an error in machining and the interface of the joint in circle direction can not be completely jointed to seal.
Description
Technical field
The utility model relates to the piston ring that seals usefulness, relates in particular to a kind of piston ring made from plastic soft zone.
Background technique
On automobile, motorcycle vibration absorber piston rod and the pistons such as compressor in the refrigerator, air-conditioning all be with a piston ring, effect is to avoid piston directly to contact with cylinder barrel, prevent wearing and tearing and sealing, piston ring generally was to use the warp composite bearing in the past, and promptly rubbing surface is at outer surface, and it is to be matrix with the steel plate, at surface of steel plate sintering one deck copper powder, at copper powder surface rolling, sintering one deck plastics, be rolled into cylindrical shape then again, contacted anti-attrition and seal action with cylinder barrel by outer field plastics.But it is thinner that its shortcoming is a plastic layer, generally has only 0.03 millimeter, and working life is short.In addition, piston ring is harder, and mounting or dismounting are very inconvenient in the piston grooved ring.
Summary of the invention
The utility model provides a kind of plastic soft zone piston ring of installing and removing convenience, wear resistance and good airproof performance.
In order to achieve the above object, the technological scheme of plastic soft zone piston ring is: comprise the circle tube piston ring that has seam, it is characterized in that described piston ring is is that main raw material recharges solid abrasion-resistant powder powder material with the teflon.Described seam is the amalgamation seam of side set form.
Plastic soft zone piston ring according to the such scheme manufacturing, because piston ring is that main raw material recharges solid abrasion-resistant powder powder material and makes by teflon all, so wear resistance is good, and another fixed elasticity is arranged, convenient mounting or dismounting, after adopting the seam of side set form, even machining error is arranged on the length of run, can not make seam in the sealing of fitting fully of the interface of circumferencial direction, and when the piston ring working in reciprocating mode, be in the state that pressurized is fitted between adjacent side set always, can make at the circumferencial direction good seal.
Description of drawings
Fig. 1 is the unfolded drawing of plastic soft zone piston ring; Fig. 2 is the plan view of plastic soft zone piston ring; Fig. 3 is the plan view of Fig. 2; Fig. 4 is the plan view of the plastic soft zone piston ring of two side sets.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model is that main raw material is filled copper powder and/or solid abrasion-resistant powder powder materials such as graphite and/or molybdenum disulfide with the teflon, become through the mould compacting sintering that thin-walled is soft is with 1, size blanking according to the dress piston ring groove, and at the soft side set 2 that is shaped on mutual amalgamation rectangle with 1 two ends as shown in Figure 1, be rolled into circle tube piston ring such as Fig. 2, shown in Figure 3 of having seam 3 again.Used side set 2 can also be lance tooth or stepped tooth etc. except illustrated rectangular teeth.How much can determining as shown in Figure 4 of side set 2 according to use condition.
Claims (4)
1. the plastic soft zone piston ring comprises the circle tube piston ring that has seam, it is characterized in that described piston ring is is that main raw material recharges solid abrasion-resistant powder powder material with the teflon.
2. plastic soft zone piston ring according to claim 1 is characterized in that described solid abrasion-resistant powder powder material is copper powder and/or graphite and/or molybdenum disulfide.
3. plastic soft zone piston ring according to claim 1 is characterized in that described seam is the amalgamation seam of side set form.
4. plastic soft zone piston ring according to claim 3 is characterized in that described side set is rectangular teeth or lance tooth or stepped tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200682010U CN201027968Y (en) | 2007-03-26 | 2007-03-26 | Plastic soft belt piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200682010U CN201027968Y (en) | 2007-03-26 | 2007-03-26 | Plastic soft belt piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027968Y true CN201027968Y (en) | 2008-02-27 |
Family
ID=39132178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200682010U Expired - Lifetime CN201027968Y (en) | 2007-03-26 | 2007-03-26 | Plastic soft belt piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027968Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089482A (en) * | 2016-07-10 | 2016-11-09 | 李陶胜 | A kind of surface sprayed molybdenum indentation piston ring |
| CN110410497A (en) * | 2019-07-30 | 2019-11-05 | 上海涟屹轴承科技有限公司 | A kind of high-accuracy polymeric seal ring of turbine rotor |
-
2007
- 2007-03-26 CN CNU2007200682010U patent/CN201027968Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089482A (en) * | 2016-07-10 | 2016-11-09 | 李陶胜 | A kind of surface sprayed molybdenum indentation piston ring |
| CN110410497A (en) * | 2019-07-30 | 2019-11-05 | 上海涟屹轴承科技有限公司 | A kind of high-accuracy polymeric seal ring of turbine rotor |
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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: ZHEJIANG SF OILLESS BEARING CO., LTD. Free format text: FORMER NAME: SHUANGFEI OILLESS BEARING CO., LTD., ZHEJIANG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314115, No. 2, Fan Jing Road, dry kiln town, Jiashan County, Zhejiang Patentee after: Zhejiang SF Oilless Bearing Co., Ltd. Address before: 314115, No. 2, Fan Jing Road, dry kiln town, Jiashan County, Zhejiang Patentee before: Shuangfei Non-Oil Bearing Co., Ltd., Zhejiang Prov. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080227 |
|
| CX01 | Expiry of patent term |