CN207750144U - Aero-engine piston - Google Patents
Aero-engine piston Download PDFInfo
- Publication number
- CN207750144U CN207750144U CN201721669981.4U CN201721669981U CN207750144U CN 207750144 U CN207750144 U CN 207750144U CN 201721669981 U CN201721669981 U CN 201721669981U CN 207750144 U CN207750144 U CN 207750144U
- Authority
- CN
- China
- Prior art keywords
- piston pin
- piston
- plug
- aero
- engine
- 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.)
- Active
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of aero-engine pistons, including the piston body being slideably positioned in cylinder, piston body is equipped with perforative piston pin hole, piston pin and two piston pin plugs for supporting fixed piston pin are installed in piston pin hole, two piston pin plugs are divided into the both ends of piston pin and are supported respectively with piston pin, multiple oilholes are machined on each piston pin plug, are flowed into the gap between the gap between piston pin plug and piston pin hole, piston pin and piston hole for lubricating oil.In the aero-engine piston of the utility model, both piston pin plug and piston pin can be prevented stuck because of high temperature lubricating oil carbon distribution, convenient for easily and fast piston pin plug and piston pin are decomposited from piston pin hole, and when decomposing, by the effect of the oilhole on piston pin plug, piston pin plug can be very easily taken out, without tapping by tool, piston pin plug and piston pin will not be caused to damage.
Description
Technical field
The utility model is related to aero-engine fields, particularly, are related to a kind of aero-engine piston.
Background technology
Piston engine is also reciprocating engine, is a kind of to convert pressure into rotation using one or more piston
The engine of kinetic energy, piston engine are one kind of heat engine, and power, piston engine owner are provided by fuel such as gasoline, diesel oil
It to be made of cylinder, piston, connecting rod, bent axle, valve mechanism, airscrew reduction device, casing etc., when work, by piston in gas
Acting is moved back and forth in cylinder.In the prior art, due to when engine works temperature it is higher, therefore engine work a period of time after,
Piston need to be decomposed to be cleared up each component for forming piston, be repaired.Existing piston is when decomposing, since high temperature carbon distribution is former
Cause it is difficult to which each component is decomposited to come, and in decomposable process, need to be tapped by tool, to easily cause each components damage.
Utility model content
The utility model provides a kind of aero-engine piston, to solve existing each portion when existing piston decomposes
Part is difficult to decomposite, and in decomposable process the technical issues of each component of easy damaged.
The technical solution adopted in the utility model is as follows：
A kind of aero-engine piston, including the piston body that is slideably positioned in cylinder, piston body are equipped with
Perforative piston pin hole, is installed with piston pin and two piston pin plugs for supporting fixed piston pin in piston pin hole, and two
A piston pin plug is divided into the both ends of piston pin and is supported respectively with piston pin, and multiple oil are machined on each piston pin plug
Hole flows into for lubricating oil in the gap between the gap between piston pin plug and piston pin hole, piston pin and piston hole.
Further, piston pin plug is in the U-typed structure of one end open, including plug end face and vertical with plug end face
The plug side wall of connection；Multiple oilholes on piston pin plug are divided on plug end face and plug side wall.
Further, multiple oilholes on plug end face are in regular array on plug end face.
Further, radial direction of the multiple oilholes on plug end face along plug end face is arranged in two circles.
Further, circumferential direction successively arranged for interval of the multiple oilholes on plug side wall along plug side wall.
Further, the vertical plug side wall setting of each oilhole on plug side wall.
Further, it is located at the piston pin plug and piston pin hole clearance fit of piston pin front end；Positioned at piston pin rear end
Piston pin plug and piston pin hole be interference fitted.
Further, the front end of piston pin is supported positioned at the open end of the piston pin plug of piston pin front end；Positioned at work
Support the rear end of piston pin in the open end of the piston pin plug of plug pin rear end.
Further, aero-engine piston further includes the multiple piston rings being installed in piston body outer circle.
Further, multiple piston rings are spaced setting successively along the axial direction of piston body.
The utility model has the advantages that：
In the aero-engine piston of the utility model, multiple oilholes are machined on each piston pin plug, pass through oilhole
Effect, the lubricating oil in cylinder will flow into the gap between piston pin plug and piston pin hole, between piston pin and piston hole
Gap in, to being lubricated to each working surface of piston pin plug and piston pin, prevent piston pin plug and piston
Both pins are stuck because of high temperature lubricating oil carbon distribution, convenient for easily and fast dividing piston pin plug and piston pin from piston pin hole
When solving, and decomposing, by the effect of the oilhole on piston pin plug, piston pin plug can be very easily taken out, to nothing
It need to be tapped by tool, piston pin plug and piston pin will not be caused to damage.
Other than objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.In attached drawing
In：
Fig. 1 is the schematic cross-sectional view of the aero-engine piston of the preferred embodiment in the utility model；
Fig. 2 is the main structure diagram of piston pin plug in Fig. 1.
Marginal data
10, piston body；20, piston pin；30, piston pin plug；31, plug end face；32, plug side wall；301, oilhole；
40, piston ring.
Specific implementation mode
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Referring to Fig.1, the preferred embodiment of the utility model provides a kind of aero-engine piston, including sliding setting
In the piston body 10 in cylinder, piston body 10 is equipped with perforative piston pin hole, and piston pin is installed in piston pin hole
20 and two piston pin plugs 30 for supporting fixed piston pin 20, two piston pin plugs 30 be divided into the two of piston pin 20
It holds and is supported respectively with piston pin 20, multiple oilholes 301 are machined on each piston pin plug 30, blocked up so that lubricating oil flows into piston pin
In gap, piston pin 20 between first 30 and piston pin hole and the gap between piston pin hole.
In the aero-engine piston of the utility model, multiple oilholes 301 are machined on each piston pin plug 30, are passed through
The effect of oilhole 301, the lubricating oil in cylinder will flow into the gap between piston pin plug 30 and piston pin hole, piston pin 20 with it is living
In gap between plug pin hole, to be lubricated each working surface of piston pin plug 30 and piston pin 20, prevent from living
Both plug pin plug 30 and piston pin 20 are stuck because of high temperature lubricating oil carbon distribution, convenient for easily and fast by 30 He of piston pin plug
Piston pin 20 is decomposited from piston pin hole, and when decomposition, can be very by the effect of the oilhole 301 on piston pin plug 30
It is taken out conveniently piston pin plug 30, without being tapped by tool, piston pin plug 30 and piston pin 20 will not be caused
Damage.
Optionally, as depicted in figs. 1 and 2, piston pin plug 30 is in the U-typed structure of one end open, including plug end face
31 and with 31 plug side wall 32 connected vertically of plug end face.Multiple oilholes 301 on piston pin plug 30 are divided into plug end
On face 31 and plug side wall 32.When work, the lubricating oil in cylinder enters piston pin by the oilhole 301 on plug end face 31 first
In plug 30, the gap between piston pin plug 30 and piston pin hole, work are then flowed by the oilhole 301 on plug side wall 32 again
In gap between plug pin 20 and piston pin hole.
Further, as shown in Fig. 2, multiple oilholes 301 on plug end face 31 are in regular array on plug end face 31.
In the utility model, radial direction of the multiple oilholes 301 along plug end face 31 on plug end face 31 is arranged in two circles.This specific implementation
In example, as shown in Fig. 2, plug end face 31 is equipped with the two circle arrangements that 6 oilholes, 301,6 oilholes 301 are divided into coaxial arrangement,
3 oilholes 301 are often enclosed, and often encloses circumferential uniform intervals of 3 oilholes 301 along plug end face 31 and arranges.
Optionally, as shown in Figure 1, multiple oilholes 301 on plug side wall 32 are spaced successively along the circumferential direction of plug side wall 32
Arrangement.In this specific embodiment, the circumferential direction uniform intervals cloth successively of multiple oilholes 301 on plug side wall 32 along plug side wall 32
It sets.
Optionally, as shown in Figure 1, the 301 vertical plug side wall 32 of each oilhole on plug side wall 32 is arranged, so that lubricating oil is fast
Speed flows outwardly.
Optionally, as shown in Figure 1, being located at the piston pin plug 30 and piston pin hole clearance fit of 20 front end of piston pin.Position
Piston pin plug 30 in 20 rear end of piston pin is interference fitted with piston pin hole.
Optionally, as shown in Figure 1, supporting piston pin 20 positioned at the open end of the piston pin plug 30 of 20 front end of piston pin
Front end.The rear end of piston pin 20 is supported positioned at the open end of the piston pin plug 30 of 20 rear end of piston pin.
Optionally, as shown in Figure 1, aero-engine piston further includes the multiple pistons being installed in 10 outer circle of piston body
Piston ring 40.In the present embodiment, multiple piston rings 40 are spaced setting successively along the axial direction of piston body 10.
When work, the lubricating oil come in 40 pumping of piston ring enters piston by the oilhole 301 on plug end face 31 first
Sell in plug 30, then again by the oilhole 301 on plug side wall 32 flow into the gap between piston pin plug 30 and piston pin hole,
In gap between piston pin 20 and piston pin hole.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of aero-engine piston, which is characterized in that including the piston body (10) being slideably positioned in cylinder,
The piston body (10) is equipped with perforative piston pin hole, piston pin (20) is installed in the piston pin hole and for supporting admittedly
Two piston pin plugs (30) of the fixed piston pin (20), two piston pin plugs (30) are divided into the piston pin
(20) it both ends and is supported respectively with the piston pin (20), multiple oilholes is machined on each piston pin plug (30)
(301), for lubricating oil flow into the gap between the piston pin plug (30) and the piston pin hole, the piston pin (20) and
In gap between the piston pin hole.
2. aero-engine piston according to claim 1, which is characterized in that
The piston pin plug (30) be in one end open U-typed structure, including plug end face (31) and with the plug end face
(31) plug side wall (32) connected vertically；
Multiple oilholes (301) on the piston pin plug (30) are divided into the plug end face (31) and the plug side
On wall (32).
3. aero-engine piston according to claim 2, which is characterized in that
Multiple oilholes (301) on the plug end face (31) are in regular array on the plug end face (31).
4. aero-engine piston according to claim 3, which is characterized in that
Multiple oilholes (301) on the plug end face (31) are arranged along the radial direction of the plug end face (31) in two circles.
5. aero-engine piston according to claim 2, which is characterized in that
Multiple oilholes (301) on the plug side wall (32) are spaced cloth successively along the circumferential direction of the plug side wall (32)
It sets.
6. aero-engine piston according to claim 2, which is characterized in that
Vertical plug side wall (32) setting of each oilhole (301) on the plug side wall (32).
7. aero-engine piston according to claim 1, which is characterized in that
The piston pin plug (30) positioned at the piston pin (20) front end and the piston pin hole clearance fit；
The piston pin plug (30) positioned at the piston pin (20) rear end is interference fitted with the piston pin hole.
8. aero-engine piston according to claim 1, which is characterized in that
Before the piston pin (20) is supported in the open end of the piston pin plug (30) of the piston pin (20) front end
End；
After the piston pin (20) is supported in the open end of the piston pin plug (30) of the piston pin (20) rear end
End.
9. aero-engine piston according to claim 1, which is characterized in that
The aero-engine piston further includes the multiple piston rings (40) being installed in the piston body (10) outer circle.
10. aero-engine piston according to claim 9, which is characterized in that
Multiple piston rings (40) are spaced setting successively along the axial direction of the piston body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721669981.4U CN207750144U (en) | 2017-12-04 | 2017-12-04 | Aero-engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721669981.4U CN207750144U (en) | 2017-12-04 | 2017-12-04 | Aero-engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750144U true CN207750144U (en) | 2018-08-21 |
Family
ID=63148136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721669981.4U Active CN207750144U (en) | 2017-12-04 | 2017-12-04 | Aero-engine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207750144U (en) |
-
2017
- 2017-12-04 CN CN201721669981.4U patent/CN207750144U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207750144U (en) | Aero-engine piston | |
| CN205129726U (en) | Disassembling tool for plunger pump packing chamber | |
| CN203201959U (en) | Sealing nut | |
| CN202284648U (en) | Seal structure of lubricating cavity of engine | |
| CN203979171U (en) | A kind of band lubrication seat subdivision outer spherical surface roller bearing | |
| CN206831126U (en) | A kind of sucker of supercharger hollow bolt with filter screen | |
| CN109630275A (en) | A kind of compact-sized drive bearing lubricating oil supply structure | |
| CN205805679U (en) | Electromotor Oil injection cooling structure | |
| EP2626633A3 (en) | Fuel Injection Assembly for use in Turbine Engines and Method of Assembling Same | |
| CN203809413U (en) | Air cylinder lubrication system | |
| CN206009411U (en) | A kind of internal model of cold pilger mill | |
| CN208057254U (en) | Piston pin plug | |
| CN202545232U (en) | Adaptive concrete piston and concrete conveying device | |
| CN203685337U (en) | Engine oil cooling circulation and cooling system of engine | |
| CN205244140U (en) | Modified axle sleeve | |
| CN204852011U (en) | Axle sleeve structure of easily dismantling | |
| CN203972505U (en) | A kind of internal mold of cold drawing steel tube machine | |
| CN205190536U (en) | Shaft sleeve | |
| CN204344883U (en) | The gelled retarder of a kind of installation | |
| CN102620133A (en) | Grease injector for oil grooves of seal rings | |
| CN203430865U (en) | Denitration pump | |
| CN203201616U (en) | Engine | |
| CN207830274U (en) | A kind of anti-interim card structure of hydraulic cylinder | |
| CN207039153U (en) | Coal electric cable hanging pin | |
| CN201891454U (en) | Valve guide rod device of large-power gas engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |