CN217501895U - Wear-resisting air compressor piston ring - Google Patents
Wear-resisting air compressor piston ring Download PDFInfo
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- CN217501895U CN217501895U CN202221621495.6U CN202221621495U CN217501895U CN 217501895 U CN217501895 U CN 217501895U CN 202221621495 U CN202221621495 U CN 202221621495U CN 217501895 U CN217501895 U CN 217501895U
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- piston ring
- wear
- air compressor
- resistant coating
- resistant
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Abstract
The utility model discloses a wear-resisting air compressor machine piston ring, the outer disc base department of piston ring is provided with the excircle closed angle, excircle closed angle top is provided with wear-resisting coating, wear-resisting coating is located the outer disc outside. This wear-resisting air compressor machine piston ring can use in viscosity lubricating oil environment, solves the air compressor machine piston ring wearability problem, effectively reduces the air leakage of air compressor machine simultaneously, reduces the oil extraction along with the gas, improves the life of air compressor machine piston ring.
Description
Technical Field
The utility model relates to a piston ring, in particular to wear-resisting air compressor machine piston ring.
Background
Along with the upgrading of engine emission and the common use of low-viscosity engine oil, the piston ring of the automobile brake air compressor provides a reliable and clean air source for automobile running. Because the viscosity of the engine oil is reduced, an oil film is easily damaged in the running process of a piston ring, so that the lubrication of the piston ring of the air compressor is insufficient, the piston ring is easily subjected to the condition of rapid abrasion, the air compressor is not tightly sealed in serious conditions, a stable clean air source cannot be guaranteed to be provided, the requirements on driving safety and automobile emission are influenced, and the abrasion resistance of the piston ring of the air compressor is necessary to be improved.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problem of the prior art, the utility model provides a wear-resisting air compressor machine piston ring, this wear-resisting air compressor machine piston ring can use in viscosity lubricating oil environment, solves air compressor machine piston ring wearability problem, effectively reduces the air leakage volume of air compressor machine simultaneously, reduces along with the gas oil extraction, improves the life of air compressor machine piston ring.
The technical scheme is as follows: the utility model discloses a wear-resisting air compressor piston ring, the outer disc base edge department of piston ring is provided with the excircle closed angle, be provided with wear-resisting coating above the excircle closed angle, wear-resisting coating is located the outer disc outside; the wear-resistant coating is an FDC wear-resistant coating, and the thickness of the wear-resistant coating is 0.08-0.12 mm.
As an optimized structure of the utility model, the hardness of the FDC wear-resistant coating is 900-1200 HV 0.1 。
As an optimized structure of the utility model, the thickness of the wear-resistant coating is 0.1 mm.
As a preferred structure of the present invention, the roughness of the FDC abrasion resistant coating is ra0.8.
As an optimized structure of the utility model, the height of excircle closed angle is 0.2 ~ 0.4 mm.
As an optimized structure of the utility model, the material of the excircle closed angle is the same as the base material of the piston ring.
As a preferred structure of the utility model, the piston ring is a first air ring or a second air ring.
Has the beneficial effects that: (1) the utility model keeps the structure of the piston ring and the outsideThe round sharp corner ensures the oil scraping capability of the piston ring, and simultaneously, a wear-resistant coating is added on the outer circular surface to improve the wear resistance of the piston ring; (2) the utility model discloses a wear-resisting coating selects FDC coating, improves 900 ~ 1200HV coating by the material hardness 296H of current design 0.1 (ii) a (3) The utility model provides the high surface roughness of tapering and cylinder body contact department improves Ra0.8 by prior art's Ra1.6, because the material hardness that the coating hardness of wearability material designed than former exceeds a lot, the utility model discloses a piston ring wearability is better.
Drawings
FIG. 1 is a schematic view of a piston ring according to the prior art;
fig. 2 is a schematic structural view of the piston ring of the present invention.
Detailed Description
The embodiment is as follows: the piston ring 1 in this embodiment may be a first ring or a second ring. As shown in fig. 1, the piston ring structure of the present invention is described in this embodiment by taking the second air ring structure as an example. As shown in fig. 2, an outer circumference sharp corner 102 is provided at the bottom side of an outer circumferential surface 101 of the piston ring in the present embodiment, the outer circumference sharp corner 102 is a convex structure located at the bottom side of the outer circumferential surface of the piston ring 1, a cylindrical surface or a convex surface with a height of 0.2 to 0.4mm is formed on the outer circumference of the piston ring, and the height direction in the present embodiment is the height (ring height) direction of the piston ring. The material of the outer sharp corner 102 is the same as the base material of the piston ring 1.
Except for the outer circle sharp corner 102, the wear-resistant coating 103 is arranged on the outer side of the outer circle surface 101 of the piston ring 1 in the embodiment, and as a preferable structure in the embodiment, the wear-resistant coating 103 is an FDC wear-resistant coating with the hardness of 900-1200 HV 0.1 The thickness is 0.08-0.12 mm, and the thickness of the FDC wear-resistant coating is selected to be 0.10mm in the embodiment. This embodiment has increased the running-in performance of piston ring initial stage through having kept 0.2 ~ 0.4 mm's raw and other materials in excircle closed angle 102 department, simultaneously, owing to increased the FDC coating, when doing wear-resistant coating 103, excircle closed angle 102 can produce magnetic line of force and concentrate relatively, can produce the burr in excircle closed angle 102 department to FDC coating particle pull has been avoided hurting the cylinder body.
In the embodiment, the surface roughness of the contact part of the taper and the cylinder body is further improved from the original Ra1.6 to Ra0.8, namely the roughness of the FDC wear-resistant coating is selected to be Ra0.8, the friction coefficient between contact surfaces is reduced by improving the contact surface roughness, oil of low-viscosity engine oil is easier to form, the lubrication is more sufficient, and the wear is less.
The application example is as follows: the piston ring of the utility model is compared and tested on the 90 air compressor series engine of a certain unit engine factory, and the test result shows that the air compressor runs for 2000 hours continuously at full speed and full load, and the air leakage and the engine oil consumption of the piston ring both meet the performance requirements. Disassembling and detecting: after the piston ring is worn, the piston ring opening increase is 0.11mm (the uncoated piston ring is 0.45mm), and the wear use requirement of the piston ring under the low-viscosity engine oil lubrication state is completely met.
Claims (7)
1. The wear-resistant piston ring for the air compressor is characterized in that an outer circular sharp corner (102) is arranged at the bottom edge of an outer circular surface (101) of the piston ring (1), a wear-resistant coating (103) is arranged above the outer circular sharp corner (102), and the wear-resistant coating (103) is positioned on the outer side of the outer circular surface (101); the wear-resistant coating (103) is an FDC wear-resistant coating, and the thickness of the wear-resistant coating (103) is 0.08-0.12 mm.
2. The piston ring for the abrasion-resistant air compressor as claimed in claim 1, wherein the FDC abrasion-resistant coating has a hardness of 900 to 1200HV 0.1 。
3. Wear-resistant air compressor piston ring according to claim 1, characterized in that the thickness of the wear-resistant coating (103) is 0.1 mm.
4. The piston ring for the wear-resistant air compressor as recited in claim 1, wherein said FDC wear-resistant coating has a roughness of ra0.8.
5. The piston ring for the abrasion-resistant air compressor as claimed in claim 1, wherein the height of the outer sharp corner (102) is 0.2-0.4 mm.
6. Wear-resistant air compressor piston ring according to claim 1, characterized in that the material of the outer cusp (102) is the same as the base material of the piston ring (1).
7. Wear-resistant air compressor piston ring according to claim 1, characterized in that the piston ring (1) is a first air ring or a second air ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221621495.6U CN217501895U (en) | 2022-06-27 | 2022-06-27 | Wear-resisting air compressor piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221621495.6U CN217501895U (en) | 2022-06-27 | 2022-06-27 | Wear-resisting air compressor piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217501895U true CN217501895U (en) | 2022-09-27 |
Family
ID=83338646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221621495.6U Active CN217501895U (en) | 2022-06-27 | 2022-06-27 | Wear-resisting air compressor piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217501895U (en) |
-
2022
- 2022-06-27 CN CN202221621495.6U patent/CN217501895U/en active Active
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