CN206000639U - Piston structure - Google Patents
Piston structure Download PDFInfo
- Publication number
- CN206000639U CN206000639U CN201621040648.2U CN201621040648U CN206000639U CN 206000639 U CN206000639 U CN 206000639U CN 201621040648 U CN201621040648 U CN 201621040648U CN 206000639 U CN206000639 U CN 206000639U
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- CN
- China
- Prior art keywords
- piston
- reinforcement
- pin
- pin boss
- reinforced rib
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston structure, including the piston only with piston-pin boss, it is formed with three reinforcements between described piston only top and piston-pin boss, wherein being located at middle reinforcement is middle reinforced rib, two other reinforcement is side reinforcement, described middle reinforced rib is located at the underface at piston pin hole center, and two side reinforcements are symmetrically arranged in middle reinforced rib both sides；This utility model can effectively mitigate piston counterweight, and then the inertia force of reduction piston, and piston also can preferably balance, and increases its stability.
Description
Technical field
This utility model is related to a kind of piston structure.
Background technology
Gasoline engine is a kind of dynamic power machine using gasoline for the fuel, by cylinder, toggle, air distribution system, fuel feeding
The part such as system, lubricating system and ignition system forms.Big flexible is very strong, and have is highly professional, so general be also referred to as
For miniature gasoline engine.The feature of general gasoline engines is that structure is simple, practical.
Piston is the important composition of toggle, and work under bad environment, needs to bear High Temperature High Pressure, so this is right
Piston material and structure have very high requirement.But piston requires " light weight, high intensity " again, thus this give piston design with
Make and bring very high requirement.
Content of the invention
This utility model purpose is：A kind of lightweight, piston structure that intensity is high is provided, can effectively mitigate work
Plug counterweight, and then reduce the inertia force of piston, piston also can preferably balance, and increases its stability.
The technical solution of the utility model is：A kind of piston structure, including the piston only with piston-pin boss,
It is formed with three reinforcements, being wherein located at middle reinforcement is middle adding between described piston only top and piston-pin boss
Strong muscle, two other reinforcement is side reinforcement, and described middle reinforced rib is located at the underface at piston pin hole center, and two sides add
Strong muscle is symmetrically arranged in middle reinforced rib both sides.
Preferably, described piston only include oval tube and be located at oval tube top and laterally projecting in ellipse
The hat dress portion of tube, described piston-pin boss is two, and is asymmetrically formed on the side wall of above-mentioned ellipse tube, described
Piston-pin boss be to the inside of oval tube extend, described reinforcement be formed at piston-pin boss top with hat dress portion it
Between.
Preferably, adopt arc transition between described side reinforcement and middle reinforced rib, and described side reinforcement respectively with
Middle reinforced rib is in 20 degree of angle arrangements.
Preferably, a lubrication groove, described piston pin are opened up respectively in the both sides of piston pin hole in described piston-pin boss
The bottom of hole seat is provided with the fuel feed hole communicating with piston pin hole.
The utility model has the advantages that：
1. this utility model can effectively mitigate piston counterweight, and then the inertia force of reduction piston, and piston also can be more
Good balance, increases its stability.
2. between side of the present utility model dowel and middle dowel using circular arc excessively, prevent stress concentration, improve
Piston non-deformability.
3. open up a lubrication groove, described piston respectively in the both sides of piston pin hole in piston-pin boss in this utility model
The bottom of pin-and-hole seat is provided with the fuel feed hole communicating with piston pin hole, to be lubricated to piston pin, prevents piston pin and piston
Wear and tear between pin-and-hole, enable the motion that piston is more flexible.
4. in this utility model, the coronal lateral dimension of piston only is bigger than the lateral dimension of oval tube, so
Piston mass can be reduced, coronal contact area is big simultaneously, the piston thus improving produced explosive force when bearing descending
Ability, increased the ruggedness of piston, reduces cost, the product quality of raising.
Brief description
Below in conjunction with the accompanying drawings and embodiment is further described to this utility model：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is part section structural representation of the present utility model.
Wherein：1 piston only；1-1 ellipse tube；1-2 is preced with dress portion；
2 piston-pin boss；2-1 piston pin hole；2-2 lubrication groove；2-3 fuel feed hole；
3 reinforcements；3-1 middle reinforced rib；3-2 side reinforcement；
Specific embodiment
Embodiment：As depicted in figs. 1 and 2, a kind of piston structure, including the piston only with piston-pin boss 2
1, it is formed with three reinforcements 3 between described piston only 1 top and piston-pin boss 2, being wherein located at middle reinforcement 3 is
Middle reinforced rib 3-1, two other reinforcement 3 is side reinforcement 3-2, and described middle reinforced rib 3-1 is located in piston pin hole 2-1
The underface of the heart, two side reinforcement 3-2 are symmetrically arranged in middle reinforced rib 3-1 both sides.
In the present embodiment, described piston only 1 includes oval tube 1-1 and is located at oval tube 1-1 top and horizontal stroke
To the hat dress portion 1-2 protruding from oval tube 1-1, described piston-pin boss 2 is two, and is asymmetrically formed in above-mentioned ellipse
On the side wall of tube 1-1, described piston-pin boss 2 is to extend to the inside of oval tube 1-1, and described reinforcement 3 is formed
Between piston-pin boss 2 top and hat dress portion 1-2.
In the present embodiment, described side reinforcement 3-2 is in 20 degree of angle arrangements respectively with middle reinforced rib 3-1.Described side adds
Adopt arc transition between muscle 3-2 and middle reinforced rib 3-1 by force, prevent stress concentration, improve piston non-deformability.
In the present embodiment, in described piston-pin boss 2, open up a lubrication groove 2-2 respectively in the both sides of piston pin hole 2-1,
The bottom of described piston-pin boss 2 is provided with the fuel feed hole 2-3 communicating with piston pin hole 2-1, to be lubricated to piston pin, prevents
Only wear and tear between piston pin and piston hole 2-1, enable the motion that piston is more flexible.
This utility model can effectively mitigate piston counterweight, and then the inertia force of reduction piston, and piston also can be more preferable
Balance, increase its stability.In this utility model, the coronal 1-2 lateral dimension of piston only 1 is than oval tube 1-1
Lateral dimension big, so can reduce piston mass, coronal 1-2 contact area is big simultaneously, and the piston thus improving bears
The ability of produced explosive force when descending, increased the ruggedness of piston, reduces cost, the product quality of raising.
The above is only concrete application example of the present utility model, any limit is not constituted to protection domain of the present utility model
System.In addition to the implementation, this utility model can also have other embodiment.All formed using equivalent or equivalent transformation
Technical scheme, all fall within this utility model claimed within the scope of.
Claims (5)
1. a kind of piston structure, including the piston only (1) with piston-pin boss (2) it is characterised in that：Described piston
It is formed with three reinforcements (3), during wherein the reinforcement (3) positioned at centre is between body (1) top and piston-pin boss (2)
Between reinforcement (3-1), two other reinforcement (3) be side reinforcement (3-2), described middle reinforced rib (3-1) be located at piston pin
The underface at hole (2-1) center, two side reinforcements (3-2) are symmetrically arranged in middle reinforced rib (3-1) both sides.
2. a kind of piston structure according to claim 1 it is characterised in that：Described piston only (1) includes oval
Tube (1-1) and be located at oval tube (1-1) top and the laterally projecting hat dress portion (1-2) in oval tube (1-1),
Described piston-pin boss (2) is two, and is asymmetrically formed on the side wall of above-mentioned ellipse tube (1-1), described piston pin
Hole seat (2) is to extend to the inside of oval tube (1-1), and described reinforcement (3) is formed at piston-pin boss (2) top and hat
Between dress portion (1-2).
3. a kind of piston structure according to claim 1 and 2 it is characterised in that：Described side reinforcement (3-2) with
Between adopt arc transition between reinforcement (3-1).
4. a kind of piston structure according to claim 1 and 2 it is characterised in that：Described side reinforcement (3-2) is respectively
It is in 20 degree of angle arrangements with middle reinforced rib (3-1).
5. a kind of piston structure according to claim 1 and 2 it is characterised in that：In described piston-pin boss (2) in
The both sides of piston pin hole (2-1) open up a lubrication groove (2-2) respectively, and the bottom of described piston-pin boss (2) is provided with and piston
The fuel feed hole (2-3) that pin-and-hole (2-1) communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040648.2U CN206000639U (en) | 2016-09-07 | 2016-09-07 | Piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040648.2U CN206000639U (en) | 2016-09-07 | 2016-09-07 | Piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000639U true CN206000639U (en) | 2017-03-08 |
Family
ID=58193198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621040648.2U Active CN206000639U (en) | 2016-09-07 | 2016-09-07 | Piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000639U (en) |
-
2016
- 2016-09-07 CN CN201621040648.2U patent/CN206000639U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |