CN204459126U - The anticorrosion piston of high-performance - Google Patents
The anticorrosion piston of high-performance Download PDFInfo
- Publication number
- CN204459126U CN204459126U CN201520076976.7U CN201520076976U CN204459126U CN 204459126 U CN204459126 U CN 204459126U CN 201520076976 U CN201520076976 U CN 201520076976U CN 204459126 U CN204459126 U CN 204459126U
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- CN
- China
- Prior art keywords
- piston
- skirt section
- anticorrosion
- performance
- cooling oil
- 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 relates to a kind of piston, the anticorrosion piston of especially a kind of high-performance.Comprise head and skirt section, be provided with pin-and-hole in skirt section, be sticked on the surface in skirt section one deck graphite, offers an inner-cooling oil recess in head inside, fills cold oil in inner-cooling oil recess.Said structure arranges one deck graphite on the surface in skirt section, graphite is generally one deck graphite coating, graphite coating can reduce friction greatly, avoid the expanded by heating that piston is excessive, and inner-cooling oil recess carries out enforceable cooling to piston, make it lower the temperature fast, avoid piston expanded by heating, thus increase frictional force, affect working life.
Description
Technical field
The utility model relates to a kind of piston, the anticorrosion piston of especially a kind of high-performance.
Background technique
Along the reciprocating mechanical parts of cylinder body axis in the cylinder body of the machineries such as stroke piston combustion engine (see internal-combustion engine), compressor and pump.Piston has disc, cylindrical and cylindrical shape 3 kinds of forms.In internal-combustion engine, piston work done under the promotion of high-temperature high-pressure fuel gas.In compressor and pump, piston applies pressure to the fluid in cylinder body under external force, flows to cause fluid and improves its pressure.In oil hydraulic cylinder, piston work done under the promotion of pressure oil.The Closed End of piston bears the pressure of working fluid, and forms firing chamber or minimum cylinder volume with cylinder cap, casing wall.Piston ring or colloid seal circle piston be equipped with in case fluid is leaked.Piston can cylinder iron, the material manufacture such as forged steel, cast steel or aluminum alloy.In internal-combustion engine, in order to reduce quality and the inertial force of piston.
Piston in the market has many problems, and working life is obviously not long, and its reason has following several factor impact, piston pin hole strength is single edge contact face, and strength is not high, and piston crown share frictional force is larger, piston crown is under the impact of burning with friction, cause piston crown thermal expansion, increase frictional force, affect piston and normally use, and affect its tightness, the problem be simultaneously easily corroded in addition, not only working life is lower, and performance is not high.
Model utility content
The purpose of this utility model is, provides the high-performance that a kind of long service life, performance are outstanding anticorrosion piston.
The utility model solves the technological scheme that its technical problem adopts: the anticorrosion piston of a kind of high-performance, comprise head and skirt section, be provided with pin-and-hole in skirt section, be sticked on the surface in skirt section one deck graphite, offer an inner-cooling oil recess in head inside, in inner-cooling oil recess, fill cold oil.
This surface being arranged on skirt section arranges one deck graphite, graphite is generally one deck graphite coating, graphite coating can reduce friction greatly, avoid the expanded by heating that piston is excessive, and inner-cooling oil recess carries out enforceable cooling to piston, make it lower the temperature fast, avoid piston expanded by heating, thus increase frictional force, affect working life.
Of the present utility modelly to be set to further: offer an annular airtight groove in the side of head, the cross section of airtight groove is trapezoidal.
Trapezoidal airtight groove has been offered in this side being arranged on piston crown, no matter the trapezium structure of airtight groove is the micro-skew in piston movement process, or the special transient states such as piston expansion, can ensure that at least side and the cylinder inner wall of airtight groove are close to, thus make tightness of the present utility model better.
Of the present utility modelly to be set to further: have a high-nickel austenitic cast iron edge circle at the top layer, side of piston crown cover.
This is arranged on piston crown and has overlapped corrosion resistance, hardness, wear resistance, insulating properties, the heat resistance that high-nickel austenitic cast iron edge circle improves piston comprehensively.
Of the present utility modelly to be set to further: offer a half elliptic unloading cavity respectively in the both sides of skirt section pin-and-hole.
This is arranged through and arranges half elliptic unloading cavity in the both sides of pin-and-hole, increases the lifting surface area when reciprocal two actions of pin-and-hole, reduces the specific pressure of piston pin hole carrying, and the stability making it run is better, longer service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is the sectional view of the present embodiment.
Embodiment
Known with reference to figure 1, Fig. 2, the anticorrosion piston of a kind of high-performance of the utility model, comprise head 1 and skirt section 2, pin-and-hole 21 is provided with in skirt section 2, be sticked on the surface in skirt section 2 one deck graphite 3, an inner-cooling oil recess 11 is offered in head 1 inside, cold oil is filled in inner-cooling oil recess 11, an annular airtight groove 12 is offered in the side of head 1, the cross section of airtight groove 12 is trapezoidal, there is a high-nickel austenitic cast iron edge circle 4 at the top layer, side of piston crown 1 cover, offer a half elliptic unloading cavity 211 in the both sides of skirt section 2 pin-and-hole 21 respectively.
Obviously, above-described embodiment is only used to done citing is clearly described, and the restriction not to mode of execution.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still in protection domain of the present utility model.
Claims (5)
1. the anticorrosion piston of high-performance, comprises head and skirt section, is provided with pin-and-hole in skirt section, it is characterized in that: be sticked on the surface in skirt section one deck graphite, offers an inner-cooling oil recess in head inside, fills cold oil in inner-cooling oil recess.
2. according to the anticorrosion piston of high-performance according to claim 1, it is characterized in that: offer an annular airtight groove in the side of head, the cross section of airtight groove is trapezoidal.
3. according to the anticorrosion piston of the high-performance described in claim 1 or 2, it is characterized in that: have a high-nickel austenitic cast iron edge circle at the top layer, side of piston crown cover.
4. according to the anticorrosion piston of the high-performance described in claim 1 or 2, it is characterized in that: offer a half elliptic unloading cavity respectively in the both sides of skirt section pin-and-hole.
5. according to the anticorrosion piston of high-performance according to claim 3, it is characterized in that: offer a half elliptic unloading cavity respectively in the both sides of skirt section pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076976.7U CN204459126U (en) | 2015-02-04 | 2015-02-04 | The anticorrosion piston of high-performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076976.7U CN204459126U (en) | 2015-02-04 | 2015-02-04 | The anticorrosion piston of high-performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459126U true CN204459126U (en) | 2015-07-08 |
Family
ID=53666012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520076976.7U Expired - Fee Related CN204459126U (en) | 2015-02-04 | 2015-02-04 | The anticorrosion piston of high-performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459126U (en) |
-
2015
- 2015-02-04 CN CN201520076976.7U patent/CN204459126U/en not_active Expired - Fee Related
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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: 20150708 Termination date: 20190204 |