CN203627145U - Piston ring with multicomponent thermochemical treatment compound layer of combination compressor - Google Patents
Piston ring with multicomponent thermochemical treatment compound layer of combination compressor Download PDFInfo
- Publication number
- CN203627145U CN203627145U CN201320830336.1U CN201320830336U CN203627145U CN 203627145 U CN203627145 U CN 203627145U CN 201320830336 U CN201320830336 U CN 201320830336U CN 203627145 U CN203627145 U CN 203627145U
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- piston ring
- ring
- interior
- main piston
- ring body
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Abstract
The utility model discloses a piston ring with a multicomponent thermochemical treatment compound layer of a combination compressor. The piston ring comprises a main piston ring body and an inner auxiliary piston ring body, wherein the main piston ring body and the inner auxiliary piston ring body are combined for use and equal in height and respectively provided with a notch and a protrusion corresponding to the notch, the protrusions are located in the corresponding notches, the height of the outer ring side of the main piston ring body is two times that of the inner ring side of the main piston ring body, the height of the outer ring side of the inner auxiliary piston ring body is 1/2 that of the inner ring side of the inner auxiliary piston ring body, the thickness of the outer ring side of the main piston ring body is the same as that of the inner ring side of the main piston ring body and is equal to the distance between the outer ring side and the inner ring side of the main piston ring body, the thickness of the outer ring side of the inner auxiliary piston ring body is the same as that of the inner ring side of the inner auxiliary piston ring body and is equal to the distance between the outer ring side and the inner ring side of the inner auxiliary piston ring body, the multicomponent thermochemical treatment compound layer of which the thickness ranges from 0.08 mm to 0.12 mm is arranged on the outer cylindrical surface of the main piston ring body, a polytetrafluoroethylene non-stick coating is arranged on the multicomponent thermochemical treatment compound layer, and the two notches are formed mutually staggered. The piston ring is characterized in that a U-shaped unloading groove is formed in the outer cylindrical surface of the main piston ring body. The piston ring bodies can mutually effectively block the corresponding gaps of the notches of the piston ring bodies, and therefore 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, come the gap between packed-piston and cylinder minute surface by piston ring, 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 when compressor compresses gas.And the piston ring that is provided with otch is in the time of 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 multicomponent thermochemical treatment compound layer piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, it is characterized in that: main piston ring all offers otch and the projection corresponding with otch with on interior sub-piston ring, projection is positioned at corresponding otch, 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 the multicomponent thermochemical treatment compound layer that thickness is 0.08～0.12mm, multicomponent thermochemical treatment compound layer is provided with Anti-Adherence Coating of Polytetrafluoroethylene, the setting of mutually staggering of two otch, the external cylindrical surface of main piston ring offers " U " type compensating groove.
Further, main piston ring and interior sub-piston ring comprise the body of being made up of 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 carry out shutoff to the gap of its otch, improve the sealing of piston ring; The external cylindrical surface of main piston ring is provided with the multicomponent thermochemical treatment compound layer that thickness is 0.08～0.12mm, makes the wear resistance of piston ring and corrosion resistance good, the working life of having improved piston ring, and environmental protection; Multicomponent thermochemical treatment compound layer is provided with Anti-Adherence Coating of Polytetrafluoroethylene, and this coating performance is stable, usability is good, friction factor maximum can be down to 0.04～0.09, reaches the object that reduces frictional work loss; Utilize the Anti-Adherence Coating of Polytetrafluoroethylene that surface tension is little, can improve the antisticking wearing and tearing of piston ring, the external cylindrical surface of main piston ring offers " U " type compensating groove, can effectively unload the pressure that piston ring is subject to, reduce, because pressure increases the wearing and tearing that piston ring is caused, to extend its working life; Main piston ring all offers otch and the projection corresponding with otch with on interior sub-piston ring, and projection is positioned at corresponding otch, and projection can effectively be carried out shutoff to the gap of its otch mutually, improves the sealing of piston ring.
2, the body of main piston ring and interior sub-piston ring is made up of 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, 5-projection, 11-main piston ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment one
As shown in Figure 1, a kind of combined type compression machine multicomponent thermochemical treatment compound layer 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 up of 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.The intermediate portion of main piston ring 1 upper-end surface caves inward into a groove, form the main piston ring 1 with 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, form the interior sub-piston ring 2 with 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.On main piston ring 1 and interior sub-piston ring 2, all offer otch 3 and the projection 5 corresponding with otch 3, projection 5 is positioned at corresponding otch 3, and projection 5 can effectively be carried out shutoff to the gap of its otch 3 mutually, improves the sealing of piston ring.The external cylindrical surface of main piston ring is provided with the multicomponent thermochemical treatment compound layer that thickness is 0.08～0.12mm, and multicomponent thermochemical treatment compound layer is provided with Anti-Adherence Coating of Polytetrafluoroethylene.
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 carry out shutoff to the gap of its incision, 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, offer " U " type compensating groove at the external cylindrical surface of main piston ring, when 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 the multicomponent thermochemical treatment compound layer that thickness is 0.08～0.12mm, makes the wear resistance of piston ring and corrosion resistance good, the working life of having improved piston ring, and environmental protection; Multicomponent thermochemical treatment compound layer is provided with Anti-Adherence Coating of Polytetrafluoroethylene, and this coating performance is stable, usability is good, friction factor maximum can be down to 0.04～0.09, reaches the object that reduces frictional work loss; Utilize the Anti-Adherence Coating of Polytetrafluoroethylene that surface tension is little, can improve the antisticking wearing and tearing of piston ring.
Embodiment two
Main piston ring 1 in embodiment one and interior sub-piston ring 2 are in the time 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 carry out shutoff to the gap of its incision, improve the sealing of piston ring.
Claims (2)
1. a combined type compression machine multicomponent thermochemical treatment compound layer piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, it is characterized in that: main piston ring all offers otch and the projection corresponding with otch with on interior sub-piston ring, projection is positioned at corresponding otch, 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 the multicomponent thermochemical treatment compound layer that thickness is 0.08～0.12mm, multicomponent thermochemical treatment compound layer is provided with Anti-Adherence Coating of Polytetrafluoroethylene, the setting of mutually staggering of two otch, the external cylindrical surface of main piston ring offers " U " type compensating groove.
2. a kind of combined type compression machine multicomponent thermochemical treatment compound layer 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 up of teflon and be filled in intrinsic polyether-ether-ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830336.1U CN203627145U (en) | 2013-12-17 | 2013-12-17 | Piston ring with multicomponent thermochemical treatment compound layer of combination compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830336.1U CN203627145U (en) | 2013-12-17 | 2013-12-17 | Piston ring with multicomponent thermochemical treatment compound layer of combination compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627145U true CN203627145U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830336.1U Withdrawn - After Issue CN203627145U (en) | 2013-12-17 | 2013-12-17 | Piston ring with multicomponent thermochemical treatment compound layer of combination compressor |
Country Status (1)
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| CN (1) | CN203627145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696939A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor multielement penetration compound layer piston ring |
-
2013
- 2013-12-17 CN CN201320830336.1U patent/CN203627145U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696939A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor multielement penetration compound layer piston ring |
| CN103696939B (en) * | 2013-12-17 | 2016-01-06 | 成都展望能源机械有限公司 | A kind of combined type compressor multicomponent thermochemical treatment compound layer piston ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |