CN204716500U - Piston and piston-ring packing - Google Patents
Piston and piston-ring packing Download PDFInfo
- Publication number
- CN204716500U CN204716500U CN201520326614.9U CN201520326614U CN204716500U CN 204716500 U CN204716500 U CN 204716500U CN 201520326614 U CN201520326614 U CN 201520326614U CN 204716500 U CN204716500 U CN 204716500U
- Authority
- CN
- China
- Prior art keywords
- piston
- ring packing
- circular groove
- annular sleeve
- 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.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Compressor (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Piston and piston-ring packing, relate to a kind of piston and piston-ring packing.Comprise piston and piston-ring packing, it is characterized in that: the periphery interval of described piston crown arranges multiple tracks circular groove, piston-ring packing comprises annular sleeve, annular sleeve is placed on the piston outside multiple tracks circular groove, all chimeric in per pass circular groove have circular rib, and the piston rib in multiple tracks circular groove and annular sleeve are integral type structure.The assembly parts that piston and rings assembly of the present utility model is integrated, piston-ring packing adopts ptfe composite to substitute current cast-iron piston ring, and its weight is only the 60-70% of homotype piston and cast-iron piston ring.Firmly during reciprocating motion, moment of inertia is little, greatly reduces the power loss of compressor, substantially increases the service behaviour of application apparatus.
Description
Technical field
The utility model relates to a kind of piston and piston-ring packing, is specially a kind of reciprocating piston for oil-free air compressor, oil hydraulic cylinder, cylinder and piston-ring packing.
Background technique
Along with the development of science and technology, more and more higher to pressurized gas quality requirement, non-lubricated compressor becomes one of focus studied in compressor industry in recent years.Oilless compressor can provide the clean pressurized gas without greasy dirt, has the advantages such as energy-saving and environmental protection.And piston and piston-ring packing are one of vital parts in reciprocal compressor compression system, its quality directly affects the air displacement of compressor, power, sealing and reliability, namely affects Economy and the working life of compressor.For this reason, the assembly working life of piston and piston ring is improved and to improve piston-ring friction characteristic particularly important to compressor.
Model utility content
The utility model object is to provide one and has weight saving, and moment of inertia is little, and power loss is little, and the piston of the advantage such as wear-resisting, fuel-economizing, province's energy, low consumption, environmental protection and piston-ring packing.
The technological scheme realizing above-mentioned purpose is: piston and piston-ring packing, comprise piston and piston-ring packing, it is characterized in that: the periphery interval of described piston crown arranges multiple tracks circular groove, piston-ring packing comprises annular sleeve, annular sleeve is placed on the piston outside multiple tracks circular groove, all chimeric in per pass circular groove have circular rib, and the piston rib in multiple tracks circular groove and annular sleeve are integral type structure.
Annular sleeve is ptfe composite, and the thickness of annular sleeve is 0.8-2.5mm.
The utility model preparation process is: first the annular ring that ptfe composite is made is placed in the circular groove that piston crown periphery is positioned at end, by the coated piston be coated on completely by annular ring outside multiple tracks circular groove of heat being formed the assembly parts of integral type, the annular ring inner circumferential be coated on piston forms the multi-ring annular rib be entrenched in circular groove.
The beneficial effects of the utility model:
The assembly parts that piston and rings assembly of the present utility model is integrated, piston-ring packing adopts ptfe composite to substitute current cast-iron piston ring, and its weight is only the 60-70% of homotype piston and cast-iron piston ring.Firmly during reciprocating motion, moment of inertia is little, greatly reduces the power loss of compressor, substantially increases the service behaviour of application apparatus.
Piston-ring packing adopts ptfe composite, and this flexible structure can ensure that ring body and casing wall have good coating performance, has very large adaptability, have sealing effect well to the cylinder of wearing and tearing, mistake circle, distortion
,the utility model can realize oil-free lubrication reciprocal compressor compression without greasy dirt problem.
The annular sleeve inner circumferential that the utility model is coated on piston forms the multi-ring annular rib be entrenched in circular groove, micro-shape groove is formed at outside piston face place, micro-shape groove can improve store oil, under shortage lubrication circumstances, ensure good lubrication, improve anti-dry friction ability, its wear resistance is better, extends the working life of compressor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises piston 1 and piston-ring packing 2, the periphery interval of piston 1 head arranges multiple tracks circular groove 3, piston-ring packing 2 comprises annular sleeve 4, annular sleeve 4 is placed on the piston 1 outside multiple tracks circular groove 3, all chimeric in per pass circular groove 3 have circular rib 5, and the piston rib 5 in multiple tracks circular groove 3 is integral type structure with annular collar 4.
Annular sleeve 4 is ptfe composite, and the thickness of annular sleeve 4 is 0.8-2.5mm.
Claims (2)
1. piston and piston-ring packing, comprise piston and piston-ring packing, it is characterized in that: the periphery interval of described piston crown arranges multiple tracks circular groove, piston-ring packing comprises annular sleeve, annular sleeve is placed on the piston outside multiple tracks circular groove, all chimeric in per pass circular groove have circular rib, and the piston rib in multiple tracks circular groove and annular sleeve are integral type structure.
2. piston according to claim 1 and piston-ring packing, is characterized in that: annular sleeve is ptfe composite, and the thickness of annular sleeve is 0.8-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326614.9U CN204716500U (en) | 2015-05-20 | 2015-05-20 | Piston and piston-ring packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326614.9U CN204716500U (en) | 2015-05-20 | 2015-05-20 | Piston and piston-ring packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716500U true CN204716500U (en) | 2015-10-21 |
Family
ID=54315501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326614.9U Expired - Fee Related CN204716500U (en) | 2015-05-20 | 2015-05-20 | Piston and piston-ring packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557261A (en) * | 2023-05-30 | 2023-08-08 | 烟台东德氢能技术有限公司 | Compression cylinder of circulating liquid seal compressor |
-
2015
- 2015-05-20 CN CN201520326614.9U patent/CN204716500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557261A (en) * | 2023-05-30 | 2023-08-08 | 烟台东德氢能技术有限公司 | Compression cylinder of circulating liquid seal compressor |
| CN116557261B (en) * | 2023-05-30 | 2024-02-06 | 烟台东德氢能技术有限公司 | Compression cylinder of a circulating liquid seal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20180520 |