CN106930855A - A kind of piston - Google Patents
A kind of piston Download PDFInfo
- Publication number
- CN106930855A CN106930855A CN201511008728.XA CN201511008728A CN106930855A CN 106930855 A CN106930855 A CN 106930855A CN 201511008728 A CN201511008728 A CN 201511008728A CN 106930855 A CN106930855 A CN 106930855A
- Authority
- CN
- China
- Prior art keywords
- piston
- pin
- annular groove
- piston pin
- skirt
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/0069—Multi-part pistons the crown and skirt being interconnected by the gudgeon pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention provides a kind of piston, including piston crown (1), sealing ring (2), piston pin (3), snap ring (4), piston rod (7) and connecting rob bushing (8)；Piston crown (1) downside is provided with piston skirt (5), and the piston skirt (5) includes piston pin bore (6)；The piston pin (3) is attached on the piston skirt (5) by the piston pin bore (6)；Both sides end face of the snap ring (4) installed in piston pin (3)；The piston rod (7) is attached on the piston pin (3)；The piston rod (7) is connected with the piston pin (3) by connecting rob bushing (8)；Inventive piston simple structure, can bear certain shock loading, it is not easy to be deformed and accelerated wear test, it is not easy to produce additional load and thermal stress, extend piston service life.
Description
Technical field
The present invention relates to a kind of component of machine field, more particularly to a kind of piston.
Background technology
Piston, works under conditions of high temperature, high pressure, high speed, insufficient lubrication.Its function is to hold
By gas pressure, and connecting rod is transmitted to by piston pin orders about bent axle and rotate, top land or combustion chamber
Part, so temperature is very high during pistons work, and Temperature Distribution is very uneven；Top land
Bear gas pressure very big, particularly expansion space stroke pressure is maximum.Piston does reciprocal at a high speed in cylinder
Move, and speed changes constantly, this generates very big inertia force, is subject to piston very big
Additional load.Piston it is this it is severe under conditions of work, can be deformed and accelerated wear test, also
Additional load and thermal stress can be produced, while being acted on by the chemical attack of combustion gas.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention be to provide it is a kind of can bear certain shock loading, do not allow
It is also easy to produce deformation and accelerated wear test, it is not easy to produce the piston of additional load and thermal stress.
(2) technical scheme
In order to solve the above technical problems, the present invention provides a kind of piston, including：It is piston crown 1, close
Seal 2, piston pin 3, snap ring 4, piston rod 7 and connecting rob bushing 8；Under the piston crown 1
Side is provided with piston skirt 5, and the piston skirt 5 includes piston pin bore 6；The piston pin 3 passes through
The piston pin bore 6 is attached on the piston skirt 5；The snap ring 4 is arranged on piston pin 3
Both sides end face；The piston rod 7 is attached on the piston pin 3.
Further, the piston rod 7 is connected with the piston pin 3 by connecting rob bushing 8.
Further, the piston crown 1 includes annular groove A and annular groove B.
Further, the annular groove A and annular groove B are provided with multiple sealing rings 2.
Further, lubricating grease is injected between the annular groove A and annular groove B.
Further, the connecting rob bushing 8 is obtained by way of powder metallurgy.
(3) beneficial effect
Inventive piston structure design is simple, can bear certain shock loading, it is not easy to produce change
Shape and accelerated wear test, it is not easy to produce additional load and thermal stress.
Brief description of the drawings
Fig. 1 is the structural representation of inventive piston；
Specific embodiment
Refering to Fig. 1, the present invention provides a kind of piston, including：Piston crown 1, sealing ring 2, piston
Pin 3, snap ring 4, piston rod 7 and connecting rob bushing 8；Piston crown 1 is directly contacted with combustion chamber；
The downside of piston crown 1 is provided with piston skirt 5, and the effect of piston skirt 5 is to try to keep piston past
The targeting part of attitude vertical in motion, that is, piston again；Piston skirt 5 includes piston boss
Hole 6；Piston pin 3 is attached to piston skirt 5 by piston pin bore 6, be piston by piston pin with
The supporting part of connecting rod connection；Snap ring 4 is arranged on the both sides end face of piston pin 3；Piston rod 7 is pacified
It is filled on piston pin 3.
Wherein：Piston rod 7 is connected with the piston pin 3 by connecting rob bushing 8, and connected mode is
Interference is connected, and connecting rob bushing 8 is obtained by way of powder metallurgy.
Refering to Fig. 1, piston crown 1 includes annular groove A and annular groove B.Annular groove A
Sealing ring 2 is installed with annular groove B, wherein being provided with 2 sealing rings 2 at annular groove B；
The effect of sealing ring 2 is sealing, prevents gas leakage and prevents machine oil from entering combustion chamber.Annular groove A and ring
Lubricating grease is injected between connected in star B.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, on the premise of the technology of the present invention principle is not departed from, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of piston, it is characterised in that：Including piston crown (1), sealing ring (2),
Piston pin (3), snap ring (4), piston rod (7) and connecting rob bushing (8)；The work
Plug head (1) downside is provided with piston skirt (5), and the piston skirt (5) is including piston
Key seat hole (6)；The piston pin (3) is attached to institute by the piston pin bore (6)
State on piston skirt (5)；Both sides end face of the snap ring (4) installed in piston pin (3)；
The piston rod (7) is attached on the piston pin (3).
2. piston as claimed in claim 1, it is characterised in that：The piston rod (7)
It is connected by connecting rob bushing (8) with the piston pin (3).
3. piston as claimed in claim 1, it is characterised in that：The piston crown (1)
Include annular groove (A) and annular groove (B).
4. piston as claimed in claim 3, it is characterised in that：The annular groove (A)
Multiple sealing rings (2) are installed with annular groove (B) place.
5. piston as claimed in claim 4, it is characterised in that：The annular groove (A)
Lubricating grease is injected and annular groove (B) between.
6. piston as claimed in claim 1, it is characterised in that：The connecting rob bushing (8)
It is obtained by way of powder metallurgy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008728.XA CN106930855A (en) | 2015-12-29 | 2015-12-29 | A kind of piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008728.XA CN106930855A (en) | 2015-12-29 | 2015-12-29 | A kind of piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930855A true CN106930855A (en) | 2017-07-07 |
Family
ID=59457426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511008728.XA Pending CN106930855A (en) | 2015-12-29 | 2015-12-29 | A kind of piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486467A (en) * | 2019-08-31 | 2019-11-22 | 重庆长安汽车股份有限公司 | A kind of piston latch structure with self-lubricating function |
| CN114087085A (en) * | 2021-11-16 | 2022-02-25 | 湖南江滨机器（集团）有限责任公司 | Engine and piston assembly thereof |
-
2015
- 2015-12-29 CN CN201511008728.XA patent/CN106930855A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486467A (en) * | 2019-08-31 | 2019-11-22 | 重庆长安汽车股份有限公司 | A kind of piston latch structure with self-lubricating function |
| CN114087085A (en) * | 2021-11-16 | 2022-02-25 | 湖南江滨机器（集团）有限责任公司 | Engine and piston assembly thereof |
| CN114087085B (en) * | 2021-11-16 | 2024-02-20 | 湖南江滨机器（集团）有限责任公司 | Engine and piston assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |