CN207905947U - A kind of novel first piston - Google Patents
A kind of novel first piston Download PDFInfo
- Publication number
- CN207905947U CN207905947U CN201820099283.3U CN201820099283U CN207905947U CN 207905947 U CN207905947 U CN 207905947U CN 201820099283 U CN201820099283 U CN 201820099283U CN 207905947 U CN207905947 U CN 207905947U
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- piston
- hole
- outer sleeve
- sleeve body
- novel
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of novel first pistons,It is intended to provide that a kind of shock resistance is good and the novel first piston of lubricant effect,Its key points of the technical solution are that a kind of novel first piston,Including piston only,The head of piston only is equipped with piston hole,The tail portion of piston only is equipped with bulb hole,The head of piston only is equipped with the oil return hole of a circle equidistant arrangement,The periphery of the piston only is equipped with outer sleeve body,Gum cover is equipped between piston only and outer sleeve body,Oil return hole runs through gum cover and outer sleeve body,Bulb hole includes the cylindrical hole being sequentially communicated,Bellmouth and semicircle orifice,Semicircle orifice is disposed adjacent to one end of piston hole,The connecting pin of bellmouth and cylindrical hole is equipped with the first card slot,The first buffering ring is equipped in first card slot,The connecting pin of semicircle orifice and bellmouth is equipped with the second card slot,The second buffering ring is equipped in second card slot,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 novel 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, and vacuum booster bulb mandril can be to bulb hole in use
Impact is generated, therefore the design of first piston need to be changed, makes it have cushioning effect, structural strength is improved, needs foot in addition
Enough machine oil carries out sufficient lubrication and ensures service life and the power of engine to protect piston, although existing piston is also set
Oil return hole is counted, but the efficiency that flows back is insufficient.
Utility model content
In view of the deficienciess of the prior art, and a kind of lubrication good the purpose of this utility model is to provide shock resistance
The novel first piston of effect.
To achieve the above object, the utility model provides following technical solution：A kind of novel first piston, including piston
The head of ontology, piston only is equipped with piston hole, and the tail portion of piston only is equipped with bulb hole, and the head of piston only is equipped with one
Enclose the oil return hole of equidistant arrangement, it is characterised in that：The periphery of the piston only is equipped with outer sleeve body, piston only and outer sleeve body
Between be equipped with gum cover, oil return hole run through gum cover and outer sleeve body, bulb hole includes the cylindrical hole, bellmouth and semicircle being sequentially communicated
Hole, semicircle orifice are disposed adjacent to one end of piston hole, and the connecting pin of bellmouth and cylindrical hole is equipped with the first card slot, in the first card slot
Equipped with the first buffering ring, the connecting pin of semicircle orifice and bellmouth is equipped with the second card slot, and the second buffering ring is equipped in the second card slot.
The utility model is further arranged to：The piston hole is equipped with inner convex platform, inner convex platform close to the one end in bulb hole
Limiting slot is formed between piston hole, and flexible ring is engaged in limiting slot, elastic ring is equipped with the annular groove for being used for snap-springs,
The cell wall of annular groove is equipped with fixture block.
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 outer sleeve body is equipped with several micropores, and several micropores form the oil of connection
Paths.
The utility model is further arranged to：The outer sleeve body uses the material of iron-based oiliness bearing.
It is had the following advantages by using above-mentioned technical proposal：Gum cover is set by adding between outer sleeve body and piston only,
Improve the damping effect and its stress intensity of first piston；Bulb hole is improved by the setting of the first buffering ring and the second buffering ring
Impact resistance；By the design of stomata, avoid hindering reflux efficiency because of inside and outside differential pressure；By the structure design of outer sleeve body,
Make the outer wall of first piston that there is self-lubricating effect, improves wearability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the portions A enlarged structure schematic diagram in the utility model embodiment Fig. 1.
Reference numeral is in figure, 1- piston onlies, 2- piston holes, 3- bulbs hole, 4- oil return holes, 5- outer sleeve bodies, 6- gum covers,
7- cylindrical holes, 8- bellmouths, 9- semicircle orifices, the first buffering rings of 10-, the second buffering rings of 11-, 12- inner convex platforms, 13- elastic rings,
14- annular grooves, 15- fixture blocks, 16- stomatas.
Specific implementation mode
It is described further referring to figs. 1 to a kind of novel first piston embodiment of 2 pairs of the utility model.
The head of a kind of novel first piston, including piston only 1, piston only 1 is equipped with piston hole 2, piston only 1
Tail portion is equipped with bulb hole 3, and the head of piston only 1 is equipped with the oil return hole 4 of a circle equidistant arrangement, it is characterised in that：The work
The periphery for filling in ontology 1 is equipped with outer sleeve body 5, and gum cover 6 is equipped between piston only 1 and outer sleeve body 5, and oil return hole 4 runs through 6 He of gum cover
Outer sleeve body 5, bulb hole 3 include cylindrical hole 7, bellmouth 8 and the semicircle orifice 9 being sequentially communicated, and semicircle orifice 9 is disposed adjacent to piston hole 2
One end, the connecting pin of bellmouth 8 and cylindrical hole 7 is equipped with the first card slot, the first buffering ring 10, semicircle is equipped in the first card slot
Hole 9 and the connecting pin of bellmouth 8 are equipped with the second card slot, and the second buffering ring 11 is equipped in the second card slot.
Piston only 1, gum cover 6 and outer sleeve body 5 overlap successively from the inside to the outside, form similar traditional rubber bush structure,
Gum cover 6 uses high-temperature resistant rubber material, gum cover 6 that can increase the damping compression-resistant effect between piston only 1 and outer sleeve body 5, and half
Circular hole 9 can coordinate the transmission for realizing power, coniform hole that can increase the wall thickness of piston only 1 with vacuum booster bulb mandril, from
And the bonding strength between piston hole 2 and bulb hole 3 is improved, rubber parts, the first buffering may be used in the first buffering ring 10
Ring 10 can reduce the impact that mandril generates bellmouth 8, if when impact, play cushioning effect, the second buffering ring 11 can also
Using rubber parts, cushioning effect is played to the connecting pin of spherical pore and bellmouth 8, improves structural strength.
The piston hole 2 is equipped with inner convex platform 12 close to the one end in bulb hole 3, is formed between inner convex platform 12 and piston hole 2
Limiting slot, the interior flexible ring 13 of engaging of limiting slot, the annular groove 14 of elastic ring 13 being equipped with for snap-springs, the slot of annular groove 14
Wall is equipped with fixture block 15.
The effect of elastic ring 13 acts as spring base, while by the elasticity of itself of elastic ring 13, clamping is played to spring
Effect, increases the stability of spring, the setting of fixture block 15 can play spring further position-limiting action, increase the steady of spring
It is qualitative.
Be additionally provided with several stomatas 16 being placed between two adjacent oil return holes 4 on the annular groove 14, stomata 16 can be it is multiple,
Stomata 16 can increase the gas permeability inside and outside piston hole 2, avoid hindering reflux efficiency because of inside and outside differential pressure.
The outer sleeve body 5 is equipped with several micropores, and several micropores form the asphalt channel of connection, and the outer sleeve body 5 uses
The material of iron-based oiliness bearing.
For outer sleeve body 5 preferably using the material for making iron-based oiliness bearing, the material of iron-based oiliness bearing can be in market
Directly purchase obtains, which is the sintered body made of powder metallurgic method using iron-based powder as primary raw material, is had in performance
Enough intensity, and material internal has countless small holes, in the fabrication process can freer adjustment apertures quantity, big
The technical advantage such as small, shape and distribution, not only can be with trapped fuel, but also can form small and tortuous asphalt channel, in work,
Rubbed heat, and lubricating oil can be spilled over to 5 outer wall of outer sleeve body, plays self-lubricating function, improves wearability, prolongs the service life,
When work stops, 5 oil suction of outer sleeve body carries out oil storage.
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 (5)
1. the head of a kind of novel first piston, including piston only, piston only is equipped with piston hole, the tail portion of piston only is set
There are bulb hole, the head of piston only to be equipped with the oil return hole of a circle equidistant arrangement, it is characterised in that：Outside the piston only
Week is equipped with outer sleeve body, and gum cover is equipped between piston only and outer sleeve body, and oil return hole runs through gum cover and outer sleeve body, and bulb hole includes
Cylindrical hole, bellmouth and the semicircle orifice being sequentially communicated, semicircle orifice are disposed adjacent to one end of piston hole, the company of bellmouth and cylindrical hole
It connects end and is equipped with the first card slot, be equipped with the first buffering ring in the first card slot, the connecting pin of semicircle orifice and bellmouth is equipped with second
Card slot, the second card slot is interior to be equipped with the second buffering ring.
2. a kind of novel first piston according to claim 1, it is characterised in that：The piston hole close to bulb hole one
End is equipped with inner convex platform, forms limiting slot between inner convex platform and piston hole, flexible ring is engaged in limiting slot, is set on elastic ring
It is useful for the annular groove of snap-springs, the cell wall of annular groove is equipped with fixture block.
3. a kind of novel first piston according to claim 2, it is characterised in that：Several be placed in is additionally provided on the annular groove
Stomata between two adjacent oil return holes.
4. a kind of novel first piston according to claim 1, it is characterised in that：The outer sleeve body is equipped with several micro-
Hole, several micropores form the asphalt channel of connection.
5. a kind of novel first piston according to claim 4, it is characterised in that：The outer sleeve body uses iron-based oil-containing axis
The material held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099283.3U CN207905947U (en) | 2018-01-20 | 2018-01-20 | A kind of novel first piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099283.3U CN207905947U (en) | 2018-01-20 | 2018-01-20 | A kind of novel first piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905947U true CN207905947U (en) | 2018-09-25 |
Family
ID=63564327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820099283.3U Active CN207905947U (en) | 2018-01-20 | 2018-01-20 | A kind of novel first piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905947U (en) |
-
2018
- 2018-01-20 CN CN201820099283.3U patent/CN207905947U/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. |