CN209781058U - Piston with friction reducing coating convenient to maintain - Google Patents
Piston with friction reducing coating convenient to maintain Download PDFInfo
- Publication number
- CN209781058U CN209781058U CN201920285715.4U CN201920285715U CN209781058U CN 209781058 U CN209781058 U CN 209781058U CN 201920285715 U CN201920285715 U CN 201920285715U CN 209781058 U CN209781058 U CN 209781058U
- Authority
- CN
- China
- Prior art keywords
- piston
- sleeve
- antifriction coating
- base member
- piston base
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a antifriction coating maintains convenient piston, it includes: piston base member and sleeve, the indent is provided with the guide way on the skirt portion excircle of piston base member, the sleeve is installed on the guide way with one heart from piston base member below to going up, carries out the packing of guide way, piston base member excircle bottom indent is provided with the first jump ring groove that is located the sleeve below, be provided with the first jump ring that is located the sleeve bottom in the first jump ring groove, carry out telescopic spacing, telescopic surface is provided with the antifriction coating. Antifriction coating maintain convenient piston, adopted can quick replacement the sleeve carry out the cover of piston base member skirt portion to utilize the antifriction coating on sleeve surface when reducing the piston motion and the sliding friction between the cylinder liner, telescopic change is convenient moreover, is favorable to the quick restoration of piston, antifriction coating damages the sleeve and can get back the factory and carry out the spraying again, and is with low costs.
Description
Technical Field
The utility model relates to a piston field especially relates to a antifriction coating maintains convenient piston.
Background
The piston is an indispensable important component of the engine. In recent years, the engine has been strengthened more and more, and the engine speed, the average effective pressure and the piston average speed have been improved more and more than before, so that the thermal load and the mechanical load of the engine have been increased. Due to the important function of the piston in the engine, the design and the manufacture of the piston are greatly changed and improved, so that the piston can meet the emission standard with high requirements in the real society.
according to researches, the solid lubricating coating can reduce the sliding friction by 10 ~ 20%, reduce the fuel consumption by about 2% while improving the power of the engine, and can also reduce the emission of hydrocarbons in tail gas, reduce the noise of the engine and prevent cylinder pulling during cold start.
Common solid anti-friction coatings include graphite, molybdenum disulfide, PTFE, tin plating, and the like. Currently, the most promising is the graphite coating, especially for high power, medium speed engines. The process of spraying the graphite coating on the surface of the piston skirt is high in requirement, long in period, not beneficial to maintenance of the piston and in need of improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a antifriction coating maintains convenient piston, ensures the antifriction effect of piston, promotes the maintenance convenience of piston.
To achieve the purpose, the utility model adopts the following technical proposal:
A piston having an antifriction coating for ease of maintenance, comprising: piston base member and sleeve, the indent is provided with the guide way on the skirt portion excircle of piston base member, the sleeve is installed on the guide way with one heart from piston base member below to going up, carries out the packing of guide way, piston base member excircle bottom indent is provided with the first jump ring groove that is located the sleeve below, be provided with the first jump ring that is located the sleeve bottom in the first jump ring groove, carry out telescopic spacing, telescopic surface is provided with the antifriction coating.
Wherein the antifriction coating is a graphite coating.
The bottom of the piston base body is symmetrically provided with a first pin shaft fixing sleeve and a second pin shaft fixing sleeve.
The inner hole of the first pin shaft fixing sleeve is provided with a limiting ring, and the inner hole of the second pin shaft fixing sleeve is provided with a first clamp spring groove.
The limiting ring, the first pin shaft fixing sleeve, the second pin shaft fixing sleeve and the piston base body are of an integrated cast aluminum structure.
Wherein, the upper portion of piston base member excircle is provided with gas ring groove and oil ring groove.
The utility model has the advantages that: the utility model provides a antifriction coating maintains convenient piston, has adopted the sleeve that can quick replacement to carry out the cover of piston base body skirt portion to utilize the antifriction coating on sleeve surface when reducing the piston motion and the sliding friction between the cylinder liner, telescopic change is convenient moreover, is favorable to the quick restoration of piston, and antifriction coating damages the sleeve and can get back the factory and carry out the spraying again, and is with low costs.
drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1.
A piston having friction reducing coatings for ease of maintenance as shown in figure 1, comprising: the piston comprises a piston base body 1 and a sleeve 4, wherein a guide groove is concavely arranged on the outer circle of a skirt part of the piston base body 1, and the sleeve 4 is concentrically arranged on the guide groove from the lower part of the piston base body 1 to fill the guide groove.
The first jump ring groove that is located sleeve 4 below is provided with to the 1 excircle bottom indent of piston base member, be provided with the first jump ring 10 that is located sleeve 4 bottom in the first jump ring groove, carry out sleeve 4 spacing, stable in structure ensures the convenience of installation and dismantlement, promotes sleeve 4 and maintains the work efficiency when changing, reduces car owner's latency.
The outer surface of the sleeve 4 is provided with an antifriction coating 5, the antifriction coating 5 is a graphite coating, the antifriction effect is good, and the sliding friction between the engine piston and the cylinder sleeve during the motion of the engine piston is reduced.
The pin shaft is an essential part in the motion of the piston, a first pin shaft fixing sleeve 2 and a second pin shaft fixing sleeve 3 are symmetrically arranged at the bottom of the piston base body 1, and the pin shaft is arranged between the first pin shaft fixing sleeve 2 and the second pin shaft fixing sleeve 3. The limiting ring 6 is arranged in the inner hole of the first pin shaft fixing sleeve 2 to limit one end of the pin shaft, the first clamp spring groove 7 is arranged in the inner hole of the second pin shaft fixing sleeve 3, the second clamp spring can be conveniently installed, the limiting of the other end of the pin shaft is realized, the installation is convenient, and the structure is stable.
In order to reduce the weight of the piston, the limiting ring 6, the first pin shaft fixing sleeve 2, the second pin shaft fixing sleeve 3 and the piston base body 1 adopt an integrated cast aluminum structure, so that the machining difficulty is low, the dead weight is light, and the structural strength is high. The sleeve 4 is made of the same cast aluminum material, so that the uniform heating expansion effect is ensured, and the stability of the piston in the motion process is improved.
And the upper part of the excircle of the piston base body 1 is provided with an air ring groove 8 and an oil ring groove 9, and the air ring and the oil ring are respectively installed to ensure air tightness.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A piston having an antifriction coating for ease of maintenance, comprising: piston base member and sleeve, the indent is provided with the guide way on the skirt portion excircle of piston base member, the sleeve is installed on the guide way with one heart from piston base member below to going up, carries out the packing of guide way, piston base member excircle bottom indent is provided with the first jump ring groove that is located the sleeve below, be provided with the first jump ring that is located the sleeve bottom in the first jump ring groove, carry out telescopic spacing, telescopic surface is provided with the antifriction coating.
2. A piston having an antifriction coating for ease of maintenance according to claim 1, wherein the antifriction coating is a graphite coating.
3. The antifriction coating maintenance facilitated piston of claim 1 wherein the bottom of the piston base body is symmetrically provided with a first pin retainer and a second pin retainer.
4. The antifriction coating maintenance facilitated piston of claim 3 wherein a stop ring is disposed in the inner bore of the first pin bushing and a first snap spring groove is disposed in the inner bore of the second pin bushing.
5. The antifriction coating maintenance-friendly piston of claim 4, wherein the retainer ring, the first pin retainer sleeve, the second pin retainer sleeve and the piston base are of an integral cast aluminum construction.
6. The piston with the antifriction coating easy to maintain according to claim 1, characterized in that the upper portion of the outer circle of the piston base body is provided with a gas ring groove and an oil ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285715.4U CN209781058U (en) | 2019-03-07 | 2019-03-07 | Piston with friction reducing coating convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285715.4U CN209781058U (en) | 2019-03-07 | 2019-03-07 | Piston with friction reducing coating convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781058U true CN209781058U (en) | 2019-12-13 |
Family
ID=68796850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285715.4U Expired - Fee Related CN209781058U (en) | 2019-03-07 | 2019-03-07 | Piston with friction reducing coating convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879267A (en) * | 2020-12-30 | 2021-06-01 | 福建钜丰汽车配件有限公司 | Wear-resisting air compressor piston that new energy automobile used |
-
2019
- 2019-03-07 CN CN201920285715.4U patent/CN209781058U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879267A (en) * | 2020-12-30 | 2021-06-01 | 福建钜丰汽车配件有限公司 | Wear-resisting air compressor piston that new energy automobile used |
| CN112879267B (en) * | 2020-12-30 | 2023-08-11 | 福建钜丰汽车配件有限公司 | Wear-resisting air compressor piston for new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |