CN207777015U - A kind of first piston - Google Patents
A kind of first piston Download PDFInfo
- Publication number
- CN207777015U CN207777015U CN201820096705.1U CN201820096705U CN207777015U CN 207777015 U CN207777015 U CN 207777015U CN 201820096705 U CN201820096705 U CN 201820096705U CN 207777015 U CN207777015 U CN 207777015U
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- China
- Prior art keywords
- piston
- hole
- self
- oil return
- lantern ring
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of first pistons, it is desirable to provide the first piston that a kind of lubricant effect is high, oil return is efficient, its key points of the technical solution are that a kind of first piston, including piston only, the head of piston only is equipped with piston hole, and the tail portion of piston only is equipped with bulb hole, it is characterised in that：The head of the piston only is equipped with self-lubricating lantern ring, self-lubricating lantern ring and piston only friction welding, self-lubricating lantern ring is equipped with several micropores, several micropores form the asphalt channel of connection, it is additionally provided with annular groove on the outer wall of piston body head, annular groove is equipped with several oil return holes being connected to piston hole, and oil return hole is arranged with piston only axle center circular array, and the utility model is suitable for piston technical field.
Description
Technical field
The utility model is related to a kind of piston technical fields, more specifically, it relates to a kind of first piston.
Background technology
Piston is the heart of automobile engine, bears the mechanical load and thermic load of alternation, is operating condition in engine
One of worst key components and parts.The function of piston is subject to gas pressure, and is transmitted to connecting rod driving by piston pin and makes song
Axis rotates, the component part of top land or combustion chamber.Piston is generally divided into three head, tail portion and piston boss parts.
Since piston long-term work is among rugged environment, it is therefore desirable to there is enough machine oil to carry out sufficient lubrication, from
And piston is protected, ensure service life and the power of engine, reduce noise, although existing piston also has design oil return hole, returns
It is low to flow efficiency, significantly piston crown is main friction side in addition, and wearability is particularly important, and traditional piston
Head is solid construction, not wear-resisting and can hinder to flow back.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of lubricant effects, high, oil return is imitated
The high first piston of rate.
To achieve the above object, the utility model provides following technical solution：A kind of first piston, including piston sheet
The head of body, piston only is equipped with piston hole, and the tail portion of piston only is equipped with bulb hole, it is characterised in that：The piston only
Head be equipped with self-lubricating lantern ring, self-lubricating lantern ring and piston only friction welding, self-lubricating lantern ring is equipped with several micropores,
Several micropores form the asphalt channel of connection, and annular groove is additionally provided on the outer wall of piston body head, and annular groove is equipped with several and living
The oil return hole of consent connection, oil return hole are arranged with piston only axle center circular array.
The utility model is further arranged to：On the oil return hole water conservancy diversion is equipped with close to one end of piston only periphery wall
Hole, the tapered structure of deflector hole.
The utility model is further arranged to：Several gas being placed between two adjacent oil return holes are additionally provided on the annular groove
Hole.
The utility model is further arranged to：The self-lubricating lantern ring uses the material of iron-based oiliness bearing.
The utility model is further arranged to：The inner convex platform being placed on piston only axle center is equipped in the piston hole, it is interior
Limiting slot is formed between boss and piston hole, the end face of inner convex platform is equipped with logo slot.
The utility model is further arranged to：The elastic ring contradicted with piston hole hole wall, elasticity are equipped in the limiting slot
The axial cross section of ring is triangular in shape.
It is had the following advantages by using above-mentioned technical proposal：By the design of self-lubricating lantern ring, self-lubricating function is played,
Wearability is improved, extends and uses the longevity；By the design of annular groove and oil return hole, oil return rate is improved；Pass through deflector hole and stomata
Design further increases oil return rate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the half section structure diagram of the utility model embodiment.
Fig. 3 is the portions the A enlarged structure schematic diagram of the utility model embodiment Fig. 2.
Reference numeral is in figure, 1- piston holes, 2- bulbs hole, 3- self-lubricating lantern rings, 4- annular grooves, 5- oil return holes, 6- water conservancy diversion
Hole, 7- stomatas, 8- inner convex platforms, 9- limiting slots, 10- logo slots, 11- elastic rings.
Specific implementation mode
It is described further referring to figs. 1 to a kind of first piston embodiment of 3 pairs of the utility model.
The head of a kind of first piston, including piston only, piston only is equipped with piston hole 1, and the tail portion of piston only is set
There are bulb hole 2, the head of the piston only to be equipped with self-lubricating lantern ring 3, self-lubricating lantern ring 3 and piston only friction welding,
Self-lubricating lantern ring 3 is equipped with several micropores, and several micropores form the asphalt channel of connection, also set on the outer wall of piston body head
There are annular groove 4, annular groove 4 to be equipped with several oil return holes 5 being connected to piston hole 1, oil return hole 5 is with piston only axle center circular array
Arrangement.
The outer wall of self-lubricating lantern ring 3 belongs to rubbing surface, can contradict and rub with cylinder inner wall, self-lubricating lantern ring 3 is preferably adopted
With the material for making iron-based oiliness bearing, the material of iron-based oiliness bearing can directly buy acquisition in market, the material be with
Iron-based powder is primary raw material, the sintered body made of powder metallurgic method, has enough intensity in performance, and material internal has
Countless small holes, in the fabrication process can freer adjustment apertures quantity, size, shape and distribution etc. it is technical excellent
Point, not only can be with trapped fuel, but also can form small and tortuous asphalt channel, in use, lubricating oil can both be spilled over to self-lubricating set
3 outer wall of ring plays self-lubricating function, and when improving wearability, prolong the service life, and compressing, part oil can pass through self-lubricating set
The asphalt channel of ring 3 is flowing axially into annular groove 4, then is back in piston hole 1 from oil return hole 5, and piston hole 1 is made to realize axial direction and diameter
To two-way oil return, to improve oil return rate.
It is equipped with deflector hole 6 close to one end of piston only periphery wall on the oil return hole 5,6 tapered structure of deflector hole is led
Discharge orifice 6 is big end close to one end of piston only periphery wall, can increase its oil return rate.
Several stomatas 7 being placed between two adjacent oil return holes 5 are additionally provided on the annular groove 4, stomata 7 can be multiple, gas
Hole 7 can increase the gas permeability inside and outside piston hole 1, avoid hindering reflux efficiency because of inside and outside differential pressure.
It is equipped with the inner convex platform 8 being placed on piston only axle center in the piston hole 1, is formed between inner convex platform 8 and piston hole 1
Limiting slot 9, limiting slot 9 are equipped with logo slot 10 for installing spring, the end face of inner convex platform 8, and logo slot 10 is identified for marking,
It is easy to use.
The elastic ring 11 contradicted with 1 hole wall of piston hole is equipped in the limiting slot 9, elastic ring 11 plays clamping to spring and makees
With increasing the stability of spring, the axial cross section of elastic ring 11 is triangular in shape, and elastic ring 11 makes the groove width of limiting slot 9 by slot
Mouth is gradually reduced to slot bottom, to which Spring Card is more preferable together in the stability in limiting slot 9.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this field
Art personnel carry out common variations and alternatives within the scope of technical solutions of the utility model should be included in the guarantor of the utility model
It protects in range.
Claims (6)
1. the head of a kind of first piston, including piston only, piston only is equipped with piston hole（1）, the tail portion of piston only is set
There is bulb hole（2）, it is characterised in that：The head of the piston only is equipped with self-lubricating lantern ring（3）, self-lubricating lantern ring（3）With
Piston only friction welding, self-lubricating lantern ring（3）Several micropores are equipped with, several micropores form the asphalt channel of connection, piston
It is additionally provided with annular groove on the outer wall of body head（4）, annular groove（4）It is equipped with several and piston hole（1）The oil return hole of connection（5）, return
Oilhole（5）It is arranged with piston only axle center circular array.
2. first piston according to claim 1, it is characterised in that：The oil return hole（5）Upper close piston only periphery
One end of wall is equipped with deflector hole（6）, deflector hole（6）Tapered structure.
3. first piston according to claim 1, it is characterised in that：The annular groove（4）On be additionally provided with and several be placed in two-phase
Adjacent oil return hole（5）Between stomata（7）.
4. first piston according to claim 1, it is characterised in that：The self-lubricating lantern ring（3）Using iron-based oil-containing axis
The material held.
5. first piston according to claim 1, it is characterised in that：The piston hole（1）Interior be equipped with is placed in piston only
Inner convex platform on axle center（8）, inner convex platform（8）With piston hole（1）Between form limiting slot（9）, inner convex platform（8）End face be equipped with
Logo slot（10）.
6. first piston according to claim 5, it is characterised in that：The limiting slot（9）It is inside equipped with and piston hole（1）Hole
The elastic ring that wall contradicts（11）, elastic ring（11）Axial cross section it is triangular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820096705.1U CN207777015U (en) | 2018-01-20 | 2018-01-20 | A kind of first piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820096705.1U CN207777015U (en) | 2018-01-20 | 2018-01-20 | A kind of first piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777015U true CN207777015U (en) | 2018-08-28 |
Family
ID=63213813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820096705.1U Active CN207777015U (en) | 2018-01-20 | 2018-01-20 | A kind of first piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777015U (en) |
-
2018
- 2018-01-20 CN CN201820096705.1U patent/CN207777015U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Dachang Automobile Parts Co., Ltd. Address before: 317699 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: Taizhou Dachang Auto Parts Co. Ltd. |