CN203584732U - Combined type compressor wear-resistant piston ring - Google Patents
Combined type compressor wear-resistant piston ring Download PDFInfo
- Publication number
- CN203584732U CN203584732U CN201320830676.4U CN201320830676U CN203584732U CN 203584732 U CN203584732 U CN 203584732U CN 201320830676 U CN201320830676 U CN 201320830676U CN 203584732 U CN203584732 U CN 203584732U
- Authority
- CN
- China
- Prior art keywords
- piston ring
- ring
- interior
- main piston
- outer rim
- 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
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a combined type compressor wear-resistant piston ring. The combined type compressor wear-resistant piston ring comprises a main piston ring and an internal secondary piston ring which are used through combination and equal in height, wherein notches are formed in the main piston ring and the internal secondary piston ring; the two notches are arranged in a mutually staggered manner; the external ring side height of the main piston ring is twice of the internal ring side height of the main piston ring; the external ring side height of the internal secondary piston ring is one half of the internal ring side height of the internal secondary piston ring; the thicknesses of the external ring side and the internal ring side of the main piston ring and the internal secondary piston ring are all the same and are equal to the distance between the external ring side and the internal ring side; the external cylindrical surface of the main piston ring is provided with a nitride layer; the nitride layer is provided with molybdenum disulfide solid lubricant. According to the combined type compressor wear-resistant piston ring, the gap between the notches can be effectively blocked mutually, so that the sealing performance of the piston ring is improved.
Description
Technical field
The utility model relates to Compressor Technology field, is specifically related to the piston ring structure in a kind of compressor.
Background technique
In reciprocal compressor, piston ring is installed on piston conventionally, by piston ring, come the gap between packed-piston and cylinder minute surface, mainly play seal action.The problem of two aspects that existing piston ring mainly exists rapid wear, sealing is not good enough.
About the rapid wear problem of piston ring, be by the improper decision of selection of piston ring to a certain extent, the metallic material to same to mill, different media is for the filled polytetrafluoroethylene ring of same formula, its wear factor difference; For same medium, the different filled polytetrafluoroethylene rings to same formula to mill metallic material, wear factor is also different.
About the sealing problem of piston ring, the outer rim that wants piston ring fits tightly cylinder minute surface, and piston ring must obtain certain effective elastic force, thereby makes piston ring must be shaped with otch; If piston ring does not have otch, it just can not obtain just elastic force, and piston ring is not necessarily pasting cylinder minute surface, just the gas of high pressure may be revealed from the gap between piston ring and cylinder during compressor compresses gas.And the piston ring that is provided with otch is when normal work, because piston ring exists otch, in long-term using process, the gap of piston ring incision can be increasing, and then can affect the sealing of compressor.
Summary of the invention
The purpose of this utility model is to provide a kind of Combined compressor piston ring.
For achieving the above object, the technical solution of the utility model is:
A kind of combined type compression machine abrasion-proof piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, on main piston ring and interior sub-piston ring, all offer otch, the setting of mutually staggering of two otch, it is characterized in that: the outer rim side height value of main piston ring is 2 times of interior ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of interior ring side height value, the outer rim side of main piston ring and interior sub-piston ring, the one-tenth-value thickness 1/10 of interior ring side is all identical and equal the distance value between outer rim side and interior ring side, the external cylindrical surface of main piston ring is provided with nitride layer, nitride layer is provided with molybdenum disulfide solid lubricant.
Further, main piston ring and interior sub-piston ring comprise the body of being made by teflon and are filled in intrinsic polyether-ether-ketone.
The beneficial effects of the utility model are:
1, piston ring comprises contour main piston ring and interior sub-piston ring, the interior ring side of main piston ring snaps in the groove between outer rim side and the interior ring side of interior sub-piston ring, the outer rim side of interior sub-piston ring snaps in the groove between outer rim side and the interior ring side of main piston ring, the both ends of the surface up and down of combination rear master piston ring and interior sub-piston ring are concordant, can mutually effectively to the gap of its otch, carry out shutoff, improve the sealing of piston ring, the external cylindrical surface of main piston ring is provided with nitride layer, reduced piston ring scuffing, protected well piston groove, extended the life-span of piston, greatly reduce the fragility of piston ring, make piston ring there is the well anti-performance that fractures, silicon nitride film layer is provided with molybdenum disulfide solid lubricant, friction factor can be down to 0.03～0.07 from existing 0.08～0.10 maximum, can obviously reduce frictional work loss, and when there is dry friction or excessive boundary friction, the molybdenum disulfide coating on piston ring excircle surface can help effectively to set up rapidly molybdenum disulfide lubricating film, eliminate the generation of inordinate wear fault mode.
2, the body of main piston ring and interior sub-piston ring is made by teflon, and in body, be filled with polyether-ether-ketone, the resistant to elevated temperatures temperature range of teflon body is 250～300 ℃, its friction factor≤0.20, the features such as polyether-ether-ketone has that mechanical strength is high, high temperature resistant, shock-resistant, fire-retardant, acid resistant alkali, wear-resisting, endurance, both are in conjunction with can effectively having reduced the friction factor of piston ring, the resistance to high temperature that has improved piston ring, wear-resisting property.
Accompanying drawing explanation
Fig. 1 is the structural representation of main piston ring and interior sub-piston ring in the utility model;
Fig. 2 is the combination schematic diagram of main piston ring and interior sub-piston ring in the utility model;
Fig. 3 is stereogram of the present utility model;
Wherein reference character is the interior ring side of outer rim side, the 22-interior sub-piston ring of interior ring side, the 21-interior sub-piston ring of outer rim side, 12-main piston ring of 1-main piston ring, 2-interior sub-piston ring, 3-otch, 4-" U " type compensating groove, 11-main piston ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment one
As shown in the figure, a kind of combined type compression machine abrasion-proof piston ring, comprises main piston ring 1 and interior sub-piston ring 2.The height value of main piston ring 1 and interior sub-piston ring 2 equates, includes the body of being made by polytetrafluoroethylmaterial material and is filled in intrinsic polyether-ether-ketone.Main piston ring 1 and interior sub-piston ring 2 are provided with the setting of mutually staggering of 3, two otch 3 of otch, and otch 3 is 30 °-45 ° with the angle of the section of main piston ring 1 or interior sub-piston ring 2.The intermediate portion of main piston ring 1 upper-end surface caves inward into a groove, formation is with the main piston ring 1 of outer rim side 11 and interior ring side 12, wherein outer rim side 11 height values of main piston ring 1 are 2 times of interior ring side 12 height values, distance value between interior ring side 12 height values and outer rim side 11, interior ring side 12 equates, also equate with the one-tenth-value thickness 1/10 of the ring of main piston ring 1 groove, make the ratio of the one-tenth-value thickness 1/10 of the ring between distance values and outer rim side and the interior ring side of height value, outer rim side and interior ring side of the height value of the outer rim side on main piston ring 1, interior ring side be: 2:1:1:1.The intermediate portion of interior sub-piston ring 2 upper-end surfaces caves inward into a groove, formation is with the interior sub-piston ring 2 of outer rim side 21 and interior ring side 22, wherein outer rim side 21 height values of interior sub-piston ring 2 are 1/2 of interior ring side 22 height values, interior ring side 22 height values and outer rim side 21, distance value between interior ring side 22 equates, also equate with the one-tenth-value thickness 1/10 of the ring of interior sub-piston ring 2 grooves, make the height value of the outer rim side on interior sub-piston ring 2, the height value of interior ring side, the ratio of the one-tenth-value thickness 1/10 of the ring between the distance values of outer rim side and interior ring side and outer rim side and interior ring side is: 1:2:1:1.The external cylindrical surface of main piston ring 1 offers " U " type compensating groove 4, can effectively unload the pressure that piston ring is subject to, and reduces, because pressure increases the wearing and tearing that piston ring is caused, to extend its working life.The external cylindrical surface of main piston ring 1 is provided with nitride layer, and this nitride layer can plasma nitrided mode form, and nitride layer is provided with molybdenum disulfide solid lubricant.
Piston ring forms by being used in combination also contour main piston ring and interior sub-piston ring, and due to the relation between the one-tenth-value thickness 1/10 of the ring between distance values and outer rim side and the interior ring side of outer rim side height value, interior ring side height value, outer rim side and interior ring side, after main piston ring and interior sub-piston ring are installed, both both ends of the surface are all concordant, thereby can mutually effectively to the gap of its incision, carry out shutoff, improve the sealing of piston ring; The body of main piston ring and interior sub-piston ring is made by polytetrafluoroethylmaterial material, and is filled with polyether-ether-ketone in body, thereby can effectively reduce the friction factor of piston ring, the resistance to high temperature that has improved piston ring, wear-resisting property; In addition, at the external cylindrical surface of main piston ring, offer " U " type compensating groove, during operative scenario, can effectively unload its pressure, reduce the wearing and tearing that the variation of pressure causes piston ring, extend the working life of piston ring.The external cylindrical surface of main piston ring is provided with nitride layer, reduced piston ring scuffing, protected well piston groove, extended the life-span of piston, greatly reduce the fragility of piston ring, make piston ring there is the well anti-performance that fractures, silicon nitride film layer is provided with molybdenum disulfide solid lubricant, friction factor can be down to 0.03～0.07 from existing 0.08～0.10 maximum, can obviously reduce frictional work loss, and when there is dry friction or excessive boundary friction, the molybdenum disulfide coating on piston ring excircle surface can help effectively to set up rapidly molybdenum disulfide lubricating film, eliminate the generation of inordinate wear fault mode.
Embodiment two
Main piston ring 1 in embodiment one and interior sub-piston ring 2 are when assembling, the interior ring side 12 of main piston ring 1 snaps in the groove between outer rim side 21, the interior ring side 22 of interior sub-piston ring 2, and the outer rim side 21 of interior sub-piston ring 2 snaps in the groove between the outer rim side 11 of main piston ring 1, interior ring side 12.Due to the height value of the outer rim side 11 on main piston ring 1, the height value of interior ring side 12, the ratio of the one-tenth-value thickness 1/10 of the groove ring between the distance values of outer rim side 11 and interior ring side 12 and outer rim side 11 and interior ring side 12 is: 2:1:1:1, the height value of the outer rim side on interior sub-piston ring 2, the height value of interior ring side, the ratio of the one-tenth-value thickness 1/10 of the ring between the distance values of outer rim side and interior ring side and outer rim side and interior ring side is: 1:2:1:1, make after main piston ring 1 and interior sub-piston ring 2 install, main piston ring 1 is all concordant with the both ends of the surface of interior sub-piston ring 2, thereby can mutually effectively to the gap of its incision, carry out shutoff, improve the sealing of piston ring.
Claims (2)
1. a combined type compression machine abrasion-proof piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, on main piston ring and interior sub-piston ring, all offer otch, the setting of mutually staggering of two otch, it is characterized in that: the outer rim side height value of main piston ring is 2 times of interior ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of interior ring side height value, the outer rim side of main piston ring and interior sub-piston ring, the one-tenth-value thickness 1/10 of interior ring side is all identical and equal the distance value between outer rim side and interior ring side, the external cylindrical surface of main piston ring is provided with nitride layer, nitride layer is provided with molybdenum disulfide solid lubricant.
2. a kind of combined type compression machine abrasion-proof piston ring as claimed in claim 1, is characterized in that: main piston ring and interior sub-piston ring comprise the body of being made by teflon and be filled in intrinsic polyether-ether-ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830676.4U CN203584732U (en) | 2013-12-17 | 2013-12-17 | Combined type compressor wear-resistant piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830676.4U CN203584732U (en) | 2013-12-17 | 2013-12-17 | Combined type compressor wear-resistant piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584732U true CN203584732U (en) | 2014-05-07 |
Family
ID=50582664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830676.4U Expired - Fee Related CN203584732U (en) | 2013-12-17 | 2013-12-17 | Combined type compressor wear-resistant piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696948A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor wear-resistant piston ring |
-
2013
- 2013-12-17 CN CN201320830676.4U patent/CN203584732U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696948A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor wear-resistant piston ring |
| CN103696948B (en) * | 2013-12-17 | 2016-05-18 | 成都展望能源机械有限公司 | A kind of combined type compression machine abrasion-proof piston ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201359080Y (en) | Piston ring | |
| CN203584732U (en) | Combined type compressor wear-resistant piston ring | |
| CN203585307U (en) | Combined compressor piston ring with Ni-P (Nickel-Phosphorus) chemical cladding material | |
| CN103696943B (en) | Combined type compressor silicon nitride film layer piston ring | |
| CN203384375U (en) | Friction sealing structure adopting hole and shaft fit | |
| CN203584733U (en) | Chromium-based ceramic composite coating piston ring of combined compressor | |
| CN103696939B (en) | A kind of combined type compressor multicomponent thermochemical treatment compound layer piston ring | |
| CN103697160A (en) | Combined compressor piston ring with Ni-P chemical coating | |
| CN103665495A (en) | Improved wear-resisting rubber composition | |
| CN203594579U (en) | Combined type compressor piston ring with silicon nitride film | |
| CN103696938B (en) | Combined type compressor chrome-base ceramic composite plating layer piston ring | |
| CN103696948A (en) | Combined compressor wear-resistant piston ring | |
| CN203655564U (en) | Combined piston ring of compressor | |
| CN203627145U (en) | Piston ring with multicomponent thermochemical treatment compound layer of combination compressor | |
| CN203655563U (en) | Combined-type compressor semi-stable state amorphous carbon coating piston ring | |
| CN203594581U (en) | Combined type abrasion-resistant compressor piston ring with titanium-based nano-ceramic coating film | |
| CN101985922B (en) | Oil-free lubrication reciprocating compressor packing box | |
| CN203594580U (en) | Combined type compressor piston ring with chrome-based diamond coating | |
| CN204327771U (en) | A kind of heavy caliber gas cylinder spinning machine main shaft bearing end cover | |
| CN104650511A (en) | Carbon fiber piston ring | |
| CN111237163A (en) | Piston ring sealing system with long service life | |
| CN103696944A (en) | Combined compressor Ti-based nano-ceramic coating film wear-resistant piston ring | |
| CN203655566U (en) | Combined composite-coating piston ring of compressor | |
| CN103696941A (en) | Combined compressor piston ring | |
| CN103696946B (en) | Combined type compressor composite coating piston ring |
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: 20140507 Termination date: 20201217 |